Joint Power Allocation and Relay Selection in Network-Coded Multi-Unicast Systems

Provided by: Institute of Electrical & Electronic Engineers
Topic: Networking
Format: PDF
Physical-layer Network Coding (PNC) promises a significant gain in overall network throughput for multi-user cooperative communications. In a multi-unicast scenario, one drawback associated with PNC is an additional noise term, coined as Network Coding (NC) noise, which severely degrades the system data rate. In this paper, the authors' contribution to address this challenging problem is source and relay power control with the objective of maximization of the minimum average achievable rate among all the source-destination pairs subject to a given total power constraint.

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