Algebraic Method for Optimal Beamforming in Two-Way Relay Systems with Analog Network Coding

被引：0
|
作者：
Thron, Christopher
Aziz, Ahsan
机构：
来源：
2015 IEEE INTERNATIONAL SYMPOSIUM ON SIGNAL PROCESSING AND INFORMATION TECHNOLOGY (ISSPIT) | 2015年
关键词：
optimization; beamforming; algorithm; complexity; conjugate gradient; relay; ANC;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The problem of optimal beamforming for two-way relay (TWR) systems with perfect channel state information (CSI) that use analog network coding (ANC) is reduced to a pair of algebraic equations in two variables that can be solved very inexpensively using the conjugate gradient algorithm. The solution has greatly reduced complexity compared to previous optimal solutions via semidefinite programming (SDP). Together with a previously-designed linearized algorithm for beamforming in the robust (imperfect CSI) case, it provides a high-performance, low-complexity robust beamforming solution for 2-way relays.
引用
收藏
页码：646 / 651
页数：6
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