Relay Selection Based on Residual Energy of Node and Power Allocation

This paper studies joint optimization strategy of relay selection and power allocation in a decoded forwarding (DF) protocol. The strategy first proposes a cooperative relay node selection algorithm based on residual energy (RE), and makes optimal relay node selection jointly considering the channel...

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Bibliographic Details
Main Authors: Zhang Pei, Qin Qin, Jiang TingYao
Format: Conference Proceeding
Language:English
Subjects:
Channel capacity
cooperative diversity
Interrupters
Optimization
power allocation
Protocols
relay selection
Relays
residual energy
Resource management
Signal to noise ratio
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Summary:This paper studies joint optimization strategy of relay selection and power allocation in a decoded forwarding (DF) protocol. The strategy first proposes a cooperative relay node selection algorithm based on residual energy (RE), and makes optimal relay node selection jointly considering the channel state information (CSI) and the residual energy information of nodes to optimize the network lifetime. To minimize user and the whole network energy consumption, it uses the network outage probability as the optimization objective, and reasonable allocation of transmission power between the source node and the optimization relay node are done. Simulation results show that the proposed algorithm with lower complexity significantly improves the system's channel capacity and energy efficiency.
DOI:10.1109/ICCECT.2012.162