Performance Analysis of Cooperative Communication for
Wireless Networks
by
Ramesh Chembil Palat
Dissertation submitted to the Faculty of
Virginia Polytechnic Institute and State University
in partial fulfillment of the requirements of the degree of
DOCTOR OF PHILOSOPHY
in
Electrical Engineering
Jeffrey H. Reed (Co-chair)
A. Annamalai (Co-Chair)
William H. Tranter
Steven W. Ellingson
Calvin J. Ribbens
December 8, 2006
Blacksburg, Virginia
Keywords: Cooperative Communication, Relaying, MIMO, Wireless Communications
Copyright 2006, Ramesh Chembil Palat
Performance Analysis of Cooperative Communication
for Wireless Networks
Ramesh Chembil Palat
Abstract
The demand for access to information when and where you need has motivated the
transition of wireless communications from a fixed infrastructure based cellular
communications technology to a more pervasive adhoc wireless networking technology.
Challenges still remain in wireless adhoc networks in terms of meeting higher capacity
demands, improved reliability and longer connectivity before it becomes a viable
widespread commercial technology. Present day wireless mesh networking uses node-tonode
serial multi-hop communication to convey information from source to destination in
the network. The performance of such a network depends on finding the best possible
route between the source and destination nodes. However the end-to-end performance
can only be as good as the weakest link within a chosen route. Unlike wired networks, the
quality of point-to-point links in a wireless mesh network is subject to random
fluctuations. This adversely affects the performance resulting in poor throughput and
poor energy efficiency.
In recent years, a new paradigm for communication called cooperative communications
has been proposed for which initial information theoretic studies have shown the
potential for improvements in capacity over traditional multi-hop wireless networks.
Cooperative... [continues]
Wireless Networks
by
Ramesh Chembil Palat
Dissertation submitted to the Faculty of
Virginia Polytechnic Institute and State University
in partial fulfillment of the requirements of the degree of
DOCTOR OF PHILOSOPHY
in
Electrical Engineering
Jeffrey H. Reed (Co-chair)
A. Annamalai (Co-Chair)
William H. Tranter
Steven W. Ellingson
Calvin J. Ribbens
December 8, 2006
Blacksburg, Virginia
Keywords: Cooperative Communication, Relaying, MIMO, Wireless Communications
Copyright 2006, Ramesh Chembil Palat
Performance Analysis of Cooperative Communication
for Wireless Networks
Ramesh Chembil Palat
Abstract
The demand for access to information when and where you need has motivated the
transition of wireless communications from a fixed infrastructure based cellular
communications technology to a more pervasive adhoc wireless networking technology.
Challenges still remain in wireless adhoc networks in terms of meeting higher capacity
demands, improved reliability and longer connectivity before it becomes a viable
widespread commercial technology. Present day wireless mesh networking uses node-tonode
serial multi-hop communication to convey information from source to destination in
the network. The performance of such a network depends on finding the best possible
route between the source and destination nodes. However the end-to-end performance
can only be as good as the weakest link within a chosen route. Unlike wired networks, the
quality of point-to-point links in a wireless mesh network is subject to random
fluctuations. This adversely affects the performance resulting in poor throughput and
poor energy efficiency.
In recent years, a new paradigm for communication called cooperative communications
has been proposed for which initial information theoretic studies have shown the
potential for improvements in capacity over traditional multi-hop wireless networks.
Cooperative... [continues]
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