Fundamentals of wireless communication
Fundamentals of wireless communication
IEEE Transactions on Wireless Communications
Selecting a spatially efficient cooperative relay
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Cooperation or not in mobile ad hoc networks: a MAC perspective
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Recovering Multiplexing Loss through Successive Relaying Using Repetition Coding
IEEE Transactions on Wireless Communications
Cooperative communications with relay-selection: when to cooperate and whom to cooperate with?
IEEE Transactions on Wireless Communications
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Cooperative Strategies and Capacity Theorems for Relay Networks
IEEE Transactions on Information Theory
A simple Cooperative diversity method based on network path selection
IEEE Journal on Selected Areas in Communications
Grouping and partner selection in cooperative wireless networks
IEEE Journal on Selected Areas in Communications
Spectral efficient protocols for half-duplex fading relay channels
IEEE Journal on Selected Areas in Communications
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In this paper, we present a hierarchical modulation-based cooperation (HMC) scheme to overcome capacity degradation due to half-duplex transmissions in conventional cooperative relay systems. In the HMC scheme, two relay terminals are used for both transmit and receive operations, i.e., full-duplex transmission. This scheme reduces the required number of time slots for cooperation. Utilizing this cooperative mechanism, the HMC scheme achieves cooperative diversity at the destination node by combining the signals delivered from the source and relay nodes. In addition, we derive a closed form of the end-to-end bit error rate for the HMC scheme, which is utilized to determine an optimal power ratio for hierarchical signals at the source node. In concurrence with the HMC scheme, we develop the best relay selection scheme for a practical wireless communication networks.