Performance Analysis of Cooperative Communication for Wireless Networks
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
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