Routing and Transport Layer Protocols for Wireless Networks

We study the performance limitations of TCP's (Transmission Control Protocol) congestion control mechanism on Wide Area Wireless Networks (WWANs) and also on ad hoc networks. We identify the properties of typical WWANs based on studies on the CDPD (Cellular Digital Packet Data) network, simulate (ns-2) the environment and design our protocol (WTCP) in this simulation environment to compare it with TCP-NewReno, TCP-Vegas, and Snoop-TCP. We also evaluated an implementation of the protocol in the CDPD network and found substantial performance improvements over an off-the-shelf TCP. For ad hoc networks, we propose and evaluate (using ns-2 simulator) a congestion control mechanism which uses hop-by-hop rate control with back-pressure. We show that our protocol has improved fairness properties compared to TCP based protocols.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Computer Science

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Sinha, Prasun

Contributors dc:contributor

• Vaduvur Bharghavan

• Computer Science

Language dc:language

eng

Identifier

(MiAaPQ)AAI3017208

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/81576