Audio/Video Streaming over Mobile WiFI

Presentation slides and final report (PDF files).

Abstract:
With the advancement of technology,wired connections are becoming hopelessly outdated.Now is the time where we can enjoy all the streamings using Wi-Fi. Wi-Fi (or WiFi) is a local area wireless technology that allows an electronic device to participate in computer networking using 2.4 GHz UHF and 5 GHz SHF ISM radio bands.[1] These days, digital services can be delivered over IP based networks. It includes multicast and Video on Demand. Video content is basically digital audio and video information which can be provided to the customers or subscribers over an IP network. It is normally in MPEG-2, MPEG-4 or H.264 format. [3] We will use IEEE 802.11g standard which has a throughput of upto 54 Mbps using the frequency band of 2.4 GHz.[2] In this project, we will use Riverbed modeler to model all the necessary links, parameters i.e. nodes, bandwidth requirement, antennas support etc and mould them together to stream audio and video upon using Wifi systems.

References:
[1] Wikipedia article on Wifi- http://en.wikipedia.org/wiki/Wi-Fi.
[2] Wikipedia article on Wifi standards- http://en.wikipedia.org/wiki/IEEE_802.11g-2003
[3] Video content - http://www.matrixstream.com/IPTV_H.264_VOD_solution_wireless_network.php
[4] Research paper-"Analysis of Enhanced Distributed Channel Access in Wireless Local Area Network using OPNET"-http://www2.ensc.sfu.ca/~ljilja/ENSC894/Spring14/Projects/ENSC894_Spring2014_projects.html
[5]Image source-http://depositphotos.com/6951381/stock-illustration-wi-fi-network.html

Simulation of Routing Protocols using Riverbed Modeler

Presentation slides and final report (PDF files).

Abstract:
Routing protocols determine the best route to transfer data between network nodes. In this project, we plan to simulate various protocols: Routing Internet Protocol (RIP), Interior Gateway Routing Protocol (IGRP), Intermediate System to Intermediate System (IS-IS), Open-Shortest Path First (OSPF), and Enhanced Interior Gateway Routing Protocol (EIGRP). Simulation scenarios are designed for each protocol. We plan to use Riverbed Modeler to simulate the system behavior and analyze the performance of the protocols when applied to real time applications.

References:
[1] E. S. Lemma, Performance comparison of EIGRP/IS-IS and OSPF/IS-IS, Blekinge Institute of Technology, Sweden, 2009.
[2] S. Farhangi and S. Golmohammadi, "A Comparative study of IS-IS and IGRP protocols for real-time application based on OPNET," Advances in Electrical Engineering Systems 1.1, 2012, pp. 65-70.
[3] M. G. Sheeba, A. Nachiappan, and P. S. L. Gokulnath, "Improving link quality using OSPF routing protocol in a stable Wi-Fi mesh network," International Conference on Communications and Signal Processing, Chennai, India, April 2012, pp. 23-26.
[4] P. Rakheja and P. Kaur, "Performance analysis of RIP, OSPF, IGRP and EIGRP routing protocols in a petwork," International Journal of Computer Applications 48.18, 2012, pp. 6-11.
[5] S. G. Thornier, "Communication service provider.s choice between OSPF and IS-IS dynamic routing protocols and implementation criteria using OPNET simulator," in Proc. Second International Conference on Computer and Network Technology (ICCNT), Bangkok, Thailand, Apr. 2010, pp. 38.42
[6] D. Xu and Lj. Trajkovic, "Performance analysis of RIP, EIGRP, and OSPF using OPNET," OPNETWORK 2011, Washington DC, August 2011.
[7] S. G. Thornier, "Dynamic routing protocol implementation decision between EIGRP, OSPF, and RIP based on technical background using OPNET Modeler," in Proc. Second International Conference on Computer and Network Technology (ICCNT), Bangkok, Thailand, Apr. 2010, pp. 191.195.

Comparison between Network Queue Disciplines and QoS Evaluation using RSVP

Presentation slides and final report (PDF files).

Abstract:
Today's networks differentiate traffic in order to meet various traffic standards and deliver the required- Quality of Service. There are broadly three service Qos models: Best effort, Integrated, Differentiate. We plan to compare various queue disciplines- FIFO, PQ, and WFQ for voice, video and FTP application. In case of Integrated Services - We plan to simulate the RSVP to identify the best parameters to provide the desired QoS using Riverbed Modeler version 18.

References:
[1] M. E. Villapol and J. Billington, "RSVP for LEO satellites," in Proc. IEEE International Conference on Networks (ICON '99), Place?, Month 1999, pp. 295-302.
[2] W.-C. Feng et al., "The BLUE active queue management algorithms," IEEE/ACM Transactions on Networking,[ 10.4 (2002):] pp. 513-528.
[3] C.-C. Tseng, et al., "HMRSVP: a hierarchical mobile RSVP protocol," Wireless Networks 9.2 (2003): pp. 95-102.
[4] J. C. R. Bennett and H. Zhang. "Why WFQ is not good enough for integrated services networks," in Proc. NOSSDAV, vol. 96. 1996, pp. *-*.
[5] L. Shankar, and S. Ambe. "Weighted fair queuing (WFQ) shaper." U.S. Patent Application 10/351, 520.
[6] W.-C. Feng, "Improving Internet congestion control and queue management algorithms," Diss. IBM Research, 1999.

Performance Analysis of Mobility of RTS/CTS Frames in Wireless Local Area Networks

Presentation slides and final report (PDF files).

Abstract:
IEEE 802.11 is one of the best known technologies in wireless LANs. In this paper, we analyze performance of Wireless Local Area Networks (WLANs). It is important to identify types of network settings that may cause bad performance. I plan to simulates mobility in wireless local area network using Riverbed 18.0. In addtion to simulating the effect of mobility in WLAN on the TCP performance-congestion control, I plan to simulate how the request to send (RTS) and clear to send (CTS) frames are utilized in avoiding the hidden node problem usually induced by mobility in WLAN.

References:
[1] Tsertou and D. I. Laurenson, "Insights into the hidden node problem," Proceeding of the 2006 International Conference on Communications and Mobile Computing, pp. 767-772, 2006.
[2] K. Xu, M. Gerla, and S. Bae, "How effective is the IEEE 802.11 RTS/CTS handshake in ad hoc networks?" IEEE GLOBECOM.02, vol. 1, pp. 72-76, November 2002.
[3] Performance evaluation of key 802.11 mac protocals ENSC 835: Communication Networks, Y. Wu and B. Li, 2011.
[4] S. Ray, J. B. Carruthers, and D. Starobinski, "RTS/CTS-induced congestion in ad hoc wireless LANs," WCNC, 2003.
[5] E. T. C. Tsai and C. Tu, "Improving IEEE 802.11 RTS/CTS handshake in wireless adhoc networks considering large interference range," Technical Report, NCU, Chengchi, Taiwan, 2004.