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GLOBECOM
2009
IEEE
14 years 2 months ago
Cognitive Radio Enhancements for Legacy Networks Using Cooperative Diversity
Abstract— Two driving goals for cognitive radio (CR) technique are maximizing spectrum utilization and avoiding interference to primary users. In this paper, we deal with the CR ...
Zhanwei Sun, Ioannis Krikidis, J. Nicholas Laneman...
WCNC
2008
IEEE
14 years 1 months ago
Optimal Strategies for Cooperative MAC-Layer Retransmission in Wireless Networks
—The concept of cooperative retransmission in wireless networks has attracted considerable research attention. The basic idea is that when a receiver cannot decode a frame, the r...
Lixiang Xiong, Lavy Libman, Guoqiang Mao
ICC
2009
IEEE
145views Communications» more  ICC 2009»
13 years 5 months ago
Distributed and Power Efficient Routing in Wireless Cooperative Networks
Most ad hoc mobile devices in wireless networks operate on batteries and power consumption is therefore an important issue for wireless network design. In this paper, we propose an...
Zhengguo Sheng, Zhiguo Ding, Kin K. Leung
CCR
2004
120views more  CCR 2004»
13 years 7 months ago
MAC-layer anycasting in ad hoc networks
A wireless ad hoc network is formed by a group of wireless hosts, without the use of any infrastructure. To enable communication, hosts cooperate among themselves to forward packet...
Romit Roy Choudhury, Nitin H. Vaidya
JCM
2008
121views more  JCM 2008»
13 years 7 months ago
A Cooperative Secure Routing Protocol based on Reputation System for Ad Hoc Networks
In wireless ad hoc networks, all its nodes behave as routers and take part in its discovery and maintenance of routes to other nodes. Thus, the presence of selfish or malicious nod...
Yihui Zhang, Li Xu, Xiaoding Wang