Routing and Transport Layer Protocols for Wireless Networks
Sinha, Prasun
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https://hdl.handle.net/2142/81576
Description
Title
Routing and Transport Layer Protocols for Wireless Networks
Author(s)
Sinha, Prasun
Issue Date
2001
Doctoral Committee Chair(s)
Vaduvur Bharghavan
Department of Study
Computer Science
Discipline
Computer Science
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Computer Science
Language
eng
Abstract
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.
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