ENSC 427: COMMUNICATION NETWORKS
Spring 2019
Project Description
Group #11
Group members:
Wong Yau Shing, 301186946 wongyauw@sfu.ca
Junchen (Steven) Wang, 301270404 junchenw@sfu.ca
Wang Xi, 301253334 axi@sfu.ca
Project title: WiFi Network Design for Public Transportation System
Final Report
Presentation
Abstract:
A WiFi hotspot aims to provide a physical address to users so that they can access to the Internet with their devices outside their home. In the past 10 years, these hotspots services have become very popular in different fields, such as coffee shops, mall, hotel and airport. In some cities, people can also use hotspots even in public station and parks. This makes wireless access becomes very convenient, as long as people can find a security hotspot that gives them a strong enough connection signal. Nowadays, finding a good quality hotspot is as simple as doing a web search. In addition, some Internet provider may also provide hotspots in public area, like ShawOpen and Telus hotspot.
There are mainly two ways to get a WiFi access from a hotspot in public. The first one is a free WiFi provided by merchants, such as mall, restaurants or hotel wireless service for their guests. Of course, some of them are not completely free. These vendors may limit the bandwidth of each user, which will slow down the visiting speed. The second way is the Portable WiFi hotspot. If people want to use a hotspot anywhere they expect, they can bring a portable WiFi hotspot. A portable WiFi hotspot allows people to access to the Internet through a build-in mobile router which can be used to connect several devices at the same time without downloading any additional software. However, people need to carry an extra device that needs to be recharged which reducing the convenience. Still, portable WiFi will ensure that people can get a network connection where public hotspots are not available.
The purpose of this project is providing Wireless Network service at public transport station. Citizens can be able to use wifi when waiting for the public transport through the public hotspot. In order to spread up the cover area of the hotspot service, setting up multiple APs in the terminal station is necessary. In our project, we are going to simulate the performance of hotspot network service, interacting with Access Points, packets switching through routers. And it will also include the PoC and the data transfer simulation capturing to check the data loss, throughput etc.
Reference:
[1] David, Bertrand & Chalon, Rene. (2010). Hotspot Based Mobile Web Communication and Cooperation: ABRI+ Bus Shelter as a Hotspot for Mobile Contextual Transportation and Social Collaboration. 184-189.
[2] R. P. Folkes and L. A. Visser, "PROTOCOL COMMUNICATION AND OTHER PUBLICATIONS TRANSIT PACKET FORWARDING ROUTED BETWEEN MULTIPLE VIRTUAL ROUTERS WITHNA SINGLE PHYSICAL ROUTER", 24-Apr-2007.
[3] P. J. Pepperell, A. D. Cambridge, C. M. Spencer, R. F. Concord, and P. S. Commerford, "SYSTEM AND METHOD FOR ASSISTING IN CONTROLLING REAL-TIME TRANSPORT PROTOCOL FLOW THROUGH MULTIPLE NETWORKS VLAUSE OF ACLUSTER OF SESSION ROUTERS", 21-Feb-2006.
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[7] 3 node connection in ns3, UTKARSH VERMA [Online]. Available: https://www.youtube.com/watch?v=yW-_BSielS4 [Accessed: 28-Mar-2019].
[8] ns-3: WIFI-TCP, IMDEA Networks Institute, 2015 [Online]. Available: https://www.nsnam.org/doxygen/wifi-tcp_8cc_source.html [Accessed: 28-Mar-2019].
[9] Wikipedia: IEEE 802.11 RTS/CTS: Phil Karn, “MACA - A New Channel Access Method for Packet Radio” [Online]. Available: https://en.wikipedia.org/wiki/IEEE_802.11_RTS/CTS [Accessed: 28-Mar-2019].