An Optimal Transmit Power Allocation for the Two-Way Relay Channel Using Physical-Layer Network Coding

被引：0

作者：

Shin, Wonjae ^{[1
]}

Lee, Namyoon ^{[1
]}

Lim, Jong Bu ^{[1
]}

Shin, Changyong ^{[1
]}

机构：

[1] Samsung Elect Co Ltd, Samsung Adv Inst Technol, Commun Lab, Yongin 446712, Gyeonggi Do, South Korea

来源：

2009 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATION WORKSHOPS, VOLS 1 AND 2 | 2009年

关键词：

Optimal Power Allocation; Physical-Layer Network Coding; Two-Way Relay Channel;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A two-way relaying system using the physical-layer network coding (PNC) does not cause the spectral loss induced by the half-duplex signaling. Furthermore, when the total power, which is limited, is properly distributed to transmission nodes in such a system, the system capacity will be enhanced significantly. In this paper, we propose an optimal power allocation in the two-way relay channel employing the PNC protocol. The optimal power allocation is obtained by maximizing the achievable sum-rate of the PNC protocol under a sum-power constraint in a Rayleigh fading channel environment. Numerical experimental results confirm that the proposed power allocation scheme achieves much higher achievable sum-rate performance than the existing schemes.

引用

页码：280 / 285

页数：6

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