User-level performance of channel-aware scheduling algorithms in wireless data networks
IEEE/ACM Transactions on Networking (TON)
Cooperation above the physical layer: the case of a simple network
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 3
Protocol-level cooperation in wireless networks: stable throughput and delay analysis
WiOPT'09 Proceedings of the 7th international conference on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks
Opportunistic beamforming using dumb antennas
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Stability and delay of finite-user slotted ALOHA with multipacket reception
IEEE Transactions on Information Theory
Random Access Broadcast: Stability and Throughput Analysis
IEEE Transactions on Information Theory
Cognitive Multiple Access Via Cooperation: Protocol Design and Performance Analysis
IEEE Transactions on Information Theory
Analysis of client relay network with opportunistic cooperation
WWIC'11 Proceedings of the 9th IFIP TC 6 international conference on Wired/wireless internet communications
Steady state analysis of three node client relay system with limited-size queues
NEW2AN'11/ruSMART'11 Proceedings of the 11th international conference and 4th international conference on Smart spaces and next generation wired/wireless networking
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We investigate the composite effects of multipacket reception (MPR) and relaying capability in affecting the stability region of a wireless network. With a general MPR channel, a trade-off arises as to whether to activate the relay simultaneously with the source so that both transmissions might be successful, or to let the relay remain silent to overhear the source's transmission and then activate the cooperation. As such, we consider a two-user multiple-access system where the user with a better user-destination channel may act as the relay for the other. An opportunistic cooperation scheme through scheduling the relay's transmission is proposed. Then the optimal scheduling probability for maximizing the stability region is characterized, and the corresponding stability region is derived. We show that the stability region of the opportunistic scheme may be convex under certain channel conditions, and may strictly outer-bound the stability region of the conventional cooperation scheme.