Simulation Comparison Between LTE and WiFi in Networks

Presentation slides and final report (PDF files).

Abstract:
LTE is known as long term evolution, which is third generation wireless technology in telecommunication networks, which excesses in transmission speed and internet capacity. LTE system uses OFDMA-based multicarrier modulation, MIMO techniques, and other advanced features to greatly improve wireless services. Wi-Fi stands for Wireless Fidelity. Generally, Wi-Fi refers to any type of Wireless Local Area Network (WLAN). In this project, we plan to analyze the simulation performance for capacity, speed, latency between LTE and Wi-Fi in networks. We are able to observe improvements for both technologies based on their simulated result.

References:
[1] H. T. Co, "LTE Small Cell vs. WIFI," 2013. [Online]. Available: www.huawei.com/ilink/en/download/HW_323974.
[2] Wikimedia Foundation, Inc. (2014 February, 16). Wi-Fi. [Online]. Available: http://en.wikipedia.org/wiki/Wi-Fi.
[3] Wikimedia Foundation, Inc. (2014 February, 7). LTE (telecommunication). [Online]. Available: http://en.wikipedia.org/wiki/Wi-Fi.
[4] 3GPP. (2014 April 4) LTE: Long Term Evolution. [Online]. Available: http://www.3gpp.org/technologies/keywords-acronyms/98-lte.
[5] Anritsu. (2014 April 4). LTE Resource Guide. [Online]. Available: http://web.cecs.pdx.edu/~fli/class/LTE_Reource_Guide.pdf

Analysis and Simulation of VoIP on Wired Connection vs. Wireless Connections

Presentation slides and final report (PDF files).

Abstract:
Voice over Internet Protocol, VoIP, is a multimedia communication methodology that has been favoured over Public Switching Telephone Networks (PSTN) during the past few years. The advantage of this technology is its low cost which allows users to make free audio and video calls with multiple users simultaneously. VoIP is used by many applications on smartphones and personal computers such as Skype. In this project we want to analyze the performance of VoIP on wired connection (LAN, WAN) versus wireless connections (WLAN, WWAN) using OPNET 16. We will inspect performance issues by analyzing the network latency, jitter and packet loss.

References:
1. L. Chu, "Implementation and Application of VoIP Networks, IEEE AIMSEC Conference, pp2139-2141, 2011.
2. L. Chu, X. Lan, Y. Tan, "The Design and Simulaton of Enterprise's VoIP Network", IEEE ICECE Conference, pp. 2653-2655, 2011.
3. J. Davidson, J. Peters, M. Bhatia, S. Kalidindi and S. Mukherjee, Voice over IP Fundamentals. Indianapolis: Cisco press, 2007.
4. "Voice over IP Protocols for voice transmission," July 7, 2011. Available: http://www.erlang.com/protocols.html. [Accessed: Feb 13, 2014].
5. Wang, Wei, Soung Chang Liew, and Victor OK Li. "Solutions to performance problems in
VoIP over a 802.11 wireless LAN." Vehicular Technology, IEEE Transactions on 54.1.

Evaluation of ZigBee Protocol Network Topologies in Medical Monitoring Environments

Presentation slides and final report (PDF files).

Abstract:
ZigBee protocol is often used in medical biotelemetry, which is a relatively new concept involving wireless transmission of data from the sensors attached to a patient to a distant monitoring station. There is no standardized topology governing the current networks, therefore, we will compare and evaluate the performance of multiple topologies to determine which is the most suitable in a typical hospital environment. The analysis will be performed in OPNET comparing characteristics such as transmission rates and QoS performance.

References:
[1] (Feb. 14, 2014) Zigbee Technology [Online]. Available: http://www.zigbee.org/About/AboutTechnology/ZigBeeTechnology.aspx..
[2] I. S. Hammoodi, B. G. Stewart, A. Kocian, and S. G. McKeenkin. "A comprehensive performance study of OPNET modeler for ZigBee wireless sensor networks," in Proc. IEEE Next Generation Mobile Applications, Services and Technologies, 2009 (NGMAST'09), Cardiff, Wales, pp. 357-362, September 2009.
[3] N. Golmie, D. Cypher, and O. Rebala. "Performance analysis of low rate wireless technologies for medical applications," Computer Communications, vol. 28, no. 10, pp. 1266- 1275, June 2005.
[4] C. Chakraborty, B. Gupta, and S. K. Ghosh. "A Review on Telemedicine-Based WBAN Framework for Patient Monitoring," Telemedicine and e-Health, vol. 19, no. 8, pp. 619-626, July 2013.
[5] C. Marghescu, M. Pantazia, A. Brodeala, and P. Svasta. "Simulation of a wireless sensor network using OPNET," in Proc. IEEE 17th International Symposium for Design and Technology in Electronic Packaging (SIITME 2011), Timisoara, pp. 249-252, October 2011.

Performance Analysis of a Wireless Home Network

Presentation slides and final report (PDF files).

Abstract:
Over the past decade, Wi-Fi networks have become commonplace in a typical home. Multiple users may be simultaneously streaming, torrenting, browsing the web, gaming, and using VoIP. This may be quite demanding on the network and may result in a loss of Quality of Service. For our project, we plan to model a multiple-user home wireless network using OPNET. We wish to observe and analyze the effect of various user's bandwidth demands on the latency, packet jitter, packet loss, and throughput on other users within the network. Furthermore, we plan to compare the effect of various wireless standards and environments in order to determine the standard that provides the best QoS.

References:
[1] I. Gupta and P. Kaur, "Comparative Throughput of WiFi and Ethernet LANs using OPNET MODELER," International Journal of Computer Applications, vol. 1, no. 2, December 2010. Available: http://www.ijcaonline.org/volume8/number6/pxc3871753.pdf .
[2] (14 Feb. 2014) "WLAN - 802.11 a,b,g and n." National Instruments. [Online]. Available: http://www.ni.com/white-paper/7131/en/ .
[3] (14 Feb. 2014) "Wireless LAN (Wifi) Tutorial." Tutorial-Reports.com. [Online]. Available: http://www.tutorial-reports.com/wireless/wlanwifi/index.php .
[4] (14 Feb. 2014) "Wireless Networking." Wireless Networking, WiFi, 802.11. Vicomsoft [Online]. Available: http://www.vicomsoft.com/learning-center/wireless-networking/ .

[5] (14 Feb. 2014) Voice over Wireless Lan 4.1 Design Guide. Cisco Systems Inc. San Jose, CA. [PDF]. Available: http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Mobility/vowlan/41dg/vowlan41dg-book/vowlan_ch8.html .

VOIP Performance Over City-Wide WIFI and LTE

Presentation slides and final report (PDF files).

Abstract:
For the past few years, video calling has become accessible to consumers thanks to the increasing quality and decreasing costs of wireless networks. While network providers offer various options for our daily network usage, our project focuses on two most popular choices: Municipal WiFi and 4G LTE. Municipal WiFi is a large wireless access area consisting of many WiFi hotspots. Customers can access the Internet through thousands of these wireless hotspots as long as they are within coverage range. However, 4G LTE is currently the most popular wireless data communication technology for mobile devices, and may be accessed anywhere within the network providerss' range of services. The goal of this project is to examine the delay, jitter, and packet loss of the two technologies while video streaming in order to compare the advantages and disadvantages of each technology. We plan to measure performance by creating more realistic simulation scenarios by using various network loads as well as by varying the distance from the signal source.

References:
[1] G. A. Abed and M. Ismail and K. Jumari, "A Realistic Model and Simulation Parameters of LTE-Advanced Networks," Fac. Eng. & Built Env., National University of Malaysia, Selangor, Rep. ISSN:2278-1021, Aug. 2012. Available: www.researchgate.net/publication/256871810_A_Realistic_Model_and_Simulation_Parameters_of_LTE-Advanced_Networks/file/72e7e524063701459f.pdf+&cd=1&hl=en&ct=clnk&gl=ca
[2] H. Wong, et al, "4G Wireless Communications and Networking," in 4G Wireless Video Communications, 1 sted. Mississauga, CA : John Wiley and Sons, Ltd, 2009, ch.4, pp.97-133.
[3] A. Ezreik and A. Gheryani, "Design and simulation of wireless networks using ns-2," in Proc. International Conference on Computer Science and Information Technology, Singapore, pp.1- 5, Apr. 2012. Available: http:psrcentre.org/images/extraimages/412630.pdf [Mar. 6, 2014].
[4] S. Naveen. "LTE (Long Term Evaluation) Network in NS2." Internet: http://naveenshanmugam.blogspot.ca/2014/02/lte-long-term-evaluation-network-in-ns2.html, Feb. 12, 2014 [Mar. 6, 2014].
[5] K. Jirka, R. Berthold, and W. Adam, "Evalvid - A Framework for Video Transmission and Quality Evaluation," in Proc. International Conference on Modelling Techniques and Tools for Computer Performance Evaluation, Urbana, pp.4-17, Sept. 2013. Available: http://www2.tkn.tu-berlin.de/publications/papers/evalvid.pdf [Mar. 6, 2014].
[6] H. Schulzrinne, S. Casner, R. Frederick, and V. Jacobson. (1996, Jan). "RTP: A Transport Protocol for Real-Time Applications." RFC1889 . [Online]. pp.6-22. Available: http://tools.ietf.org/html/rfc3550 [Mar. 7, 2014].

Voice over LTE

Presentation slides and final report (PDF files).

Abstract:
The latest communication technology called Voice over LTE (VoLTE) has become to be popular. LTE is only about to support faster 4G data services, where most smartphone users have already experienced a good data service from mobile carrier. To support voice services, these devices drop their LTE connections, and 'fall back' to 2G and 3G mobile network to either make or receive a phone call, which is called Circuit-Switched Fallback (CSFB) [1]. VoLTE is based on IP Multimedia Subsystem (IMS) network, with specific profiles for control and media planes of voice service on LTE. The voice service will be delivered as data flows within the LTE data bearer. We plan implementing LTE, by use OPNET, and simulating the VoLTE scenario on top of LTE. Our goal in this project is to evaluate the performance and potential of VoLTE.

References:
[1] D. Sahota. "LTE falls back on voice". Sep 10, 2013. Internet: http://www.telecoms.com/177492/lte-falls-back-on-voice/.
[2] G. Camarillo and M. Garcia-Martin. "The 3G IP Multimedia Subsystem(IMS): Merging the Internet and the Cellular Worlds", 2006.
[3] B. Furht and Syed A. Ahson, "Long Term Evolution: 3GPP LTE Radio And Cellular Technology", Crc Press, 2009.
[4] The Mobile Broadband Standard, 3GPP TS 22.173, IP Multimedia Core Network Subsystem (IMS) Multimedia Telephony Service and supplementary services; Stage 1.
[5] S. Sesia, I. Toufik, and M. Baker, "LTE - The UMTS Long Term Evolution - From Theory to Practice", Second Edition including Release 10 for LTE-Advanced, John Wiley & Sons, 2011.

The Comparison of Capability between Wi-Fi and WIMAX

Presentation slides and final report (PDF files).

Abstract:
WIMAX (Worldwide Interoperability for Microwave Access) is wireless communication standard that is based upon IEEE 802.16. It is also a member of 4G family that is similar to well-known LTE. Wi-Fi is a data transmission system but is based on IEEE 802.11 standard. Both Wi-Fi and WIMAX are using wireless technology. They do not need a physical connection to propagate their signals. There are some differences between these two network technologies. WIMAX provides a faster and longer distance network to users than Wi-Fi. The speed of WIMAX may reach up to 70 Mbps compared to Wi-Fi which only has 50 Mbps. As the development of radio technology, the speed of Wi-Fi continues to increase in those days. The fastest speed of Wi-Fi is using IEEE 802.11n standard, because this standard has doubled spectrum and bandwidth. The speed can be up to 300 Mbps. However, WIMAX is more expensive than Wi-Fi on its set up expenses, because it needs outdoor facility such as base station to implement. The main difference between these two systems is the range. There is no doubt that the coverage of WIMAX is larger than Wi-Fi. WIMAX may cover up to 50 kilometers but Wi-Fi only covers 30 meters. In order to compare two different technologies fairly, some same conditions need to be applied. We plan to compare the capability between Wi-Fi and WIMAX with a same distance which eliminates their difference. We try to analyze the quality of service such as jitter, package loss and interference of these two networks by having same number of users within a same range. The comparison will be implemented by streaming a HD video online and making an IP call. Wireless Fidelity (Wi-Fi) is a data transmission system but is based on IEEE 802.11 standard. Worldwide Interoperability for Microwave Access (WIMAX) is wireless communication standard that is based upon IEEE 802.16. It is also a member of 4G family that is similar to well-known Long term evolution (LTE). Both Wi-Fi and WIMAX use wireless technology. They do not need a physical connection to propagate their signals. There are some differences between these two network technologies. WIMAX provides a faster and longer distance network to users than Wi-Fi. The speed of WIMAX may reach up to 70 Mbps compared to Wi-Fi that can only achieve 50 Mbps. As the radio technology develops, the speed of Wi-Fi continues to increase. The fastest speed of Wi-Fi is when using IEEE 802.11n standard, because it has doubled spectrum and bandwidth. The speed may be up to 300 Mbps. However, setup for WIMAX is more expensive than for Wi-Fi, because WIMAX needs outdoor facilities such as base stations for its implementation. The main difference between these two systems is their range. There is no doubt that WIMAX coverage is larger than Wi-Fi. WIMAX may cover up to 50 kilometers while Wi-Fi only covers 30 meters.

In order to compare the two technologies fairly, the same conditions should be applied. We plan to compare the Wi-Fi and WIMAX capabilities over the same distance, which eliminates their differences. We plan to analyze the quality of service such as jitter, package loss, and interference of the two networks by having the same number of users within a same range. The comparison will be implemented by streaming a high-definition (HD) video online and heavy HTTP browsing.

References:
1. M.Brain, and E.Grabianowski, ."How WIMAX Works" [Online]. Available: http://computer.howstuffworks.com/wimax2.htm
2. A.Zvi, and Ehow contributo, "What Is the Difference Between WiMAX vs. WiFi" [Online]. Available: from http://www.ehow.com/info_8217728_difference-between-wimax-vs-wifi.html
3. P. Rengaraju., C.-H. Lung, and A. Srinivasan, "Measuring and Analyzing WiMAX Security and QoS in Testbed Experiments". In Proc. IEEE ICC, Kyoto, 5-9 June 2011, pp.1-3
4. L.Phifer, "Differences between WLANs, Wi-Fi and WiMax" [Online]. Available: http://searchnetworking.techtarget.com/answer/Differences-between-WLANs-Wi-Fi-and-Wi Max
5. N. Ghazisaidi, and H. Kassaei, and S, Bohlooli,"Integration of WiFi and WiMAX-Mesh Network". 2009 Second International Conference on Advances in Mesh Networks. Athens, Glyfada, 18-23 June 2009, pp.1

Analysis of LTE Video Conferencing Performance Using OPNET

Presentation slides and final report (PDF files).

Abstract:
LTE (Long Term Evolution) technology has been used in the past few years as the high-speed wireless communication technology between mobile phones. It is supposed to represent successful replacement of the UMTS (Universal Mobile Telecommunications System) 3G technology. In this project, we plan to evaluate the performance of the LTE network technology through a variety of scenarios using OPNET software tool.

References:
[1] F.Zivkovic, J.Priest, H.Haghshenas "Quantitative Analysis of Streaming Multimedia over WiMAX and LTE Networks Using OPNET v. 16.0 ".[Online] Available: http://www2.ensc.sfu.ca/~ljilja/ENSC427/Spring13/Projects/team9/ENSC_427_Group_9_Final_Report.pdf [Accessed: 01 March 2014] [2] "LTE: Long Term Evolution". [Online] Available:
http://www.sfu.ca/~srajara1/Index.html [Accessed: 14 Febuary 2014].
[3] M. Torad, A.E. Qassas and H.A. Henawi, "Comparison between LTE and WiMAX based on System Level Simulation Using OPNET modeler", 28th National Radio Science Conference, Apr. 2011, pp 1-9. [Online] Available: IEEE Xplore, http://ieeexplore.ieee.org/Xplore/guesthome.jsp [Accessed: 14 February 2014].
[4] "WiMAX - What is WiMAX?". [Online] Available: Simulation Using OPNET modeler"
http://www.tutorialspoint.com/wimax/what_is_wimax.htm [Accessed: 14 February 2014].
[5] X. Jiang, Z. Zhao, and F. Feng," http://www.sfu.ca/~zza36/report-427.pdf Available: http://www.sfu.ca/~zza36/report-427.pdf [Accessed: 01 April 2014].

Comparison of EIGRP, RIP and OSPF Routing Protocols based on OPNET

Presentation slides and final report (PDF files).

Abstract:
In a computer network, the transmission of data is based on the routing protocol which selects the best routes between any two nodes. Different types of routing protocols are applied to specific network environment. Three typical types of routing protocol are chosen as the simulation samples: RIP, OSPF and EIGRP. RIP (Routing Information Protocol) is one of the oldest routing protocols still in service. Hop count is the metric that RIP uses and the hop limit limits the network size that RIP can support. OSPF (Open Shortest Path First) is the most widely used IGP (Interior Gateway Protocol) large enterprise networks. OSPF is based on the Shortest Path First (SPF) algorithm which is used to calculate the shortest path to each node. EIGRP Enhanced Interior Gateway Routing Protocol) is Cisco's proprietary routing protocol based on Diffusing Update Algorithm. EIGRP has the fastest router convergence among the three protocols we are testing.

More detailed description of these three routing protocols will be included later. We aim to analyze the performance of the three protocols such as their router convergence, convergence duration and end-to-end delay. In our project, we are going to use OPNET to simulate RIP, OSPF and EIGRP in order to compare their attributes and performance. According to the convergence we can find out which protocols are suitable for different sizes of network.

References:
[1] Behrouz A. Forouzan, "TCP/IP Protocol Suite," 2009.
[2] Pankaj Rakheja, Prabhjot Kaur, Anjali Gupta, Aditi Sharma, "Performance Analysis of RIP, OSPF, IGRP and EIGRP Routing Protocols in a Network," 2012.
[3] Thorenoor, S. G, "Dynamic Routing Protocol Implementation Decision between EIGRP, OSPF and RIP Based on Technical Background Using OPNET Modeler," 2010, pp. 191-195.
[4] Cisco, "Cisco Active Network Abstraction 3.7 Reference Guide," 2010, Chapter 10 pp. 393-396.
[5] Scott M. Ballew, "Managing IP Networks with Cisco Routers," O'Reilly, 1997, Chapter 5.

Analysis of Voice over LTE Performance using OPNET

Presentation slides and final report (PDF files).

Abstract:
LTE is a new standard for wireless data communications intended to significantly improve the previous 3G standard. Unlike 3G, LTE only supports packet switching, making LTE incompatible with 3G and 2G. This introduces a new challenge, because previously all voice calls relied on circuit switched networks. Voice over LTE (VoLTE) has emerged as the leading solution for delivering voice services. VoLTE is based on the IP Multimedia Subsystem, where voice service is delivered as data via LTE. In this project, we plan to simulate VoLTE over a range of various scenarios, and analyze its performance using OPNET.

References:
[1] (Feb. 10, 2014) C. Gessner, and O. Gerlach, .Voice and SMS in LTE., Rohde & Schwarz, May 2011. [Online]. Available: http://cdn.rohde-schwarz.com/dl_downloads/dl_application/application_notes/1ma197/1MA197_1e_voice_and_SMS_in_LTE.pdf.
[2] (Feb. 10, 2014) C. Qunhui, .Evolution and deployment of VoLTE., Huawei Communicate, Sep 2011. [Online]. Available: http://www.huawei.com/en/static/hw-094164.pdf.
[3] M. Abdullah, and A. Yonis, .Performance of LTE release 8 and release 10 in wireless communications,. in Proc. Cyber Security, Cyber Warfare and Digital Forensic (CyberSec), 2012. Kuala Lumpur, June 28 2012.
[4] J. Davidson, J. Peters, M. Bhatia, S. Kalidindi and S. Mukherjee, Voice over IP Fundamentals. Indianapolis: Cisco press, 2007
[5] ] (Feb. 10, 2014) Voip-Info.org, "VOIP QoS Requirements". [Online]. Available: http://www.voip-info.org/wiki/view/QoS.

Evaluation and Comparison of WiMAX 802.16 and Wi-Fi 802.11n (BW20)

Presentation slides and final report (PDF files).

Abstract:
We intend to evaluate and compare performance of WiMAX 802.16 and Wi-Fi 802.11n (Bandwidth 20MHz) supported by OPNET. We plan to introduce the background information regarding WiMAX and Wi-Fi and use the OPNET 16 to simulate different cases of these two protocols with the expectation to comprehend what leads to their different applications after compare their basic characteristics and behavior under different circumstances.

The rapid increase and widespread of the use of smart phones and many other wireless devices causing the great increase of the demand for the network technologies, and leads to the improvement of such technologies. As one of the most well-known and commonly used protocol, the WIFI is used specifically for local network access. In comparison, the WiMAX (Worldwide Interoperability for Microwave Access) is a protocol used for mobile devices to support long-range fast speed information exchange. How their features causing them to have different application draws our interest.

References:

Haitao, W. Yong, P. Keping, L. Shiduan, C. (2001). "A simple model of IEEE 802.11 Wireless LAN*". Internet: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=983630 (February 2014)
[2] Hung-Yu, W. Samrat, G. Rauf, I. & Zygmunt J. Hass (2005)."Interference-aware IEEE 802.16 WiMAX mesh networks". Internet: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1543918(February 2014)
[3] Radio-Electronics.com. "WiMAX and Wi-Fi Comparison". Internet: http://www.tutorialspoint.com/wimax/wimax_wifi_comparison.htm (February 2014)
[4]Azadeh, F. (Spring 2010). "OPNET Simulation of IEEE 802.11(WiFi) and IEEE 802.16(WiMax) in a small area". Internet: http://www2.ensc.sfu.ca/~ljilja/ENSC895/Projects/ENSC895_Spring2010 _projects.html (February 2014)
[5] Ravinder, P., Sukhchandan, L. & Ljiljana, T. (2011) "Simulation and Performance Evaluation of WiFi and WiMAX using OPNET". Internet:http://www2.ensc.sfu.ca/~ljilja/papers/Opnetwork2011_paul_lally_final.pdf (February 2014)

Analysis of Applications Through IP VPN

Presentation slides and final report (PDF files).

Abstract:
Virtual Private Network (VPN) technology connect computer clients from a private network, across a public network, such as the Internet, to another private network, while still guaranteeing the security, user experience, and integrity of a private network. The use of a VPN connection can cause a non-desirable effect on the performance of applications. We plan to analyze the performance of various applications typically used by corporations using OPNET.

References:
[1] (12 March 2014) F. Parkar and K. Wong, "Analysis of IP VPN Performance." [Online]. Available: http://www2.ensc.sfu.ca/~ljilja/ENSC427/Spring12/Projects/team12/ENSC427_Group12_FinalReport_Spring2012.pdf.
[2] (22 March 2014) "Firewalls and VPN Networks," [Online]. Available: http://www.eng.tau.ac.il/~netlab/resources/booklet/lab11.pdf.
[3] (22 March 2014) "How much does VPN slow my Internet down?," Cactus VPN, [Online]. Available: www.cactusvpn.com/vpn/vpn-slow-internet-connection.
[4] (4 April 2014) P. Ferguson, Cisco Systems and G. Huston, Telstra, "What Is a VPN?," Cisco, [Online]. Available: http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_1-1/what_is_a_vpn.html.
[5] (12 February 2014) S. Hussein and A. Hadi, "The Impact of Using Security Protocols in Dedicated Private Network and Virtual Private Network," International Journal of Scientific and Technology Research, [Online]. 11(2), pp. 170-175. Available: http://www.ijstr.org/final-print/nov2013/The-Impact-Of-Using-Security-Protocols-In-Dedicated-Private-Network-And-Virtual-Private-Network.pdf.
[6] (9 April 2014) B. Marcel "Secure Data Access for Home Users", Tom's Hardware, [Online]. Available: http://www.tomshardware.com/reviews/secure-remote-access,1803-2.html.
[7] (2 April 2014) "What is VPN?," [Online]. Available: technet.microsoft.com/en-us/library/cc731954(v=ws.10).aspx
[8] (2 April 2014) X. Bau and F. Zhang, "The Application of VPN Technology in the University's Library," 2011 IEEE 3rd Conference on Communication Software and Networks (ICCSN) , pp. 563-566, May 2011.
[9] (3 April 2014) "How Virtual Private Networks Work," (13 October 2008), Cisco, [Online]. Available: http://www.cisco.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike-protocols/14106-how-vpn-works.html.

Analysis of MBMS in LTE Networks

Presentation slides and final report (PDF files).

Abstract:
The Long Term Evolution (LTE) is a more advanced telecommunication technology than 3G mobile network. It allows users to deliver data and multimedia in a more efficient way. In our project, we plan to model the Multimedia Broadcast and Multicast Service (MBMS) in LTE architecture in OPNET. MBMS data transmission in LTE contains single-cell and multi-cell transmissions. We plan to focus on the simulation of single-cell transmission and then analyze the results.

References:
[1] 4G LTE-Advanced Techonology Overview (n.d.) http://www.home.agilent.com/agilent/editorial.jspx?ckey=1905163&id=1905163%22&lc=eng&cc=IN.
[2] LTE Broadcast (2013), http://www.ericsson.com/res/docs/whitepapers/wp-lte-broadcast.pdf.
[3] A.Alexiou, C.Bouras, V.Kokkinos, A.Papazois, G.Tsichritzis, Multimedia Broadcasting in LTE Networks, (n.d.), http://ru6.cti.gr/ru6/publications/9526Bouras_IGI-Global_chapter_v10.pdf.
[4] Abhijit Hota, Broadcast and Multicast Service for LTE and Advanced, (n.d.), http://www.scribd.com/doc/31520400/Broadcast-and-Multicast-Service-for-LTE-and-Advanced.
[5] E.Dahlman, S.Parkvall, J.Skold, 4G: LTE/LTE-Advanced for Mobile Broadband (2011), Chapter 15: Multimedia Broadcast/multicast Services.

Performance of Mobile Ad-Hoc Network Routing Protocols

Presentation slides and final report (PDF files).

Abstract:
With the advent of cutting edge technological advancements in processor speed and wireless communications, advanced mobile wireless networks usage is growing by leaps and bounds. These mobile networks are inherently based on packet switched technology; predominantly Internet Protocol (IP). There are many such technologies and standards, and notable among them is Mobile Wireless Ad Hoc network. Ad hoc is a Latin phrase meaning "for this". A mobile ad hoc network is a group of nodes equipped with wireless transceivers that can communicate with one another without using any fixed networking infrastructure. Communication is provisioned by the transmission of data packets over a common wireless channel. This kind of network facilitates wireless nodes to automatically find each other and self-configure themselves to route IP packets among themselves In this project, we are going to use OPNET 16.0 to simulate Mobile Wireless Ad Hoc network with three different routing protocols: Ad Hoc On-Demand Distance Vector (AODV), Dynamic Source Routing (DSR) and Optimized Lint State Routing (OLSR). The three protocols are going to be evaluated in terms of performance metric. Three performance metrics are going to be used to compare the protocols, which are Throughput Rate, Packet Overhead and Delay.

References:
Space Internet - Transmission of Large Files
[1] P. Kuosmanen, .Classification of Ad Hoc Routing Protocols., Naval Academy, Helsinki, Finlanf. [online]. Available: http://www.netlab.tkk.fi/opetus/s38030/k02/Papers/12-Petteri.pdf.
[2] J.Broch D. Maltz D. Johnson, .A Performance Comparison of Multi-Hop Wireless Ad Hoc Network Routing Protocols., Carnegie Mellon University, Pittsburgh, PA [online]. Available: http://www.cs.cornell.edu/people/egs/615/broch98performance.pdf.
[3] S. Sarkar T. Basavaraju C. Puttamadappa, .Routing Protocols for Mobile Ad Hoc Networks., in .Ad Hoc Mobile wireless network., 2nd ed. Boca Raton, Auerbash, 2008, pp. 59-67.
[4] A. Pirzada M. Portmann J. Indulska, .Hybrid Mesh Ad-hoc On-demand Distance Vector Routing Protocol., Queensland Research Laboratory, Austalia [online]. Available: http://www.nicta.com.au/__data/assets/pdf_file/0014/15620/Hybrid_Mesh_Ad-hoc_On-demand_Distance_Vector_Routing_Protocol.pdf.
[5] E. Royer,.A Review of Current Routing Protocols for Ad Hoc Mobile Wireless Networks., The University of California, Santa Barbra [online]. Available: http://www.grc.upv.es/biblioteca/A%20Review%20of%20Current%20Routing%20Protocols%20for.pdf.

High Resolution Video Streaming over Wi-Fi, WiMAX, and LTE

Presentation slides and final report (PDF files).

Abstract:
Our primary motivation to simulate mobile networks is due to the growing popularity and rising significance of wireless topologies. Among many types of mobile networks, both WiMAX and LTE are known as the most popular networks that have reached the peak of their popularity. WiMAX and LTE provide high speed mobile broadband Internet service over large area coverage [2]. The strength of a wireless signal may vary widely depending on distances between devices, surrounding environment, and physical structure. In this project, we would like to test the capabilities of modern wireless devices with regards to signal strength by utilizing high resolution video streaming over WMAX and LTE networks. Moreover, we would like to analyze and make a side by side comparison between WiMAX and LTE performances on high resolution video streaming. For simulation, we are going to use OPNET 16.0 to simulate WiMAX and LTE scenarios since OPNET is a very powerful tool that allows users to not only simulate various scenarios with user-friendly interface and options, but also to collect the data with visualize graphs and tables.

References:
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