Opportunistic Relaying of the Physical-Layer Network Coding Packets
Pla Information · JOURNAL OF ELECTRONICS INFORMATION TECHNOLOGY · 2009
To combat fading in wireless channel,an Opportunistic Relaying scheme based on Physical-layer Network Coding(PNC-OR) is proposed,which not only improves the network throughput by network coding ideas,but also achieves the multi-user diversity gain through relay node selection.Focusing on the bi-directional wireless relaying channels,the sum capacity of the destination nodes in the PNC-OR scheme for the quasi-static fading environment is developed.The numerical results show that in contrast to the opportunistic relaying scheme and conventional network coding scheme,PNC-OR scheme achieves higher spectral efficiency.