通信学报2012，Vol.33Issue(2)：82-86,5.
双向中继信道中物理层网络编码的检测
Detection for physical-layer network coding in two-way relay channels
摘要
Abstract
The detection for physical-layer network coding (PNC) in two-way relay channels was investigated. Maximum-likelihood (ML) detection not only had great performance but also had high computational complexity. Therefore, without channel state information (CSI) at source nodes, two detection schemes were proposed. The first scheme was likelihood ratio (LR) detection based on LR function, and the other was maximum a posteriori probability (MAP) detection based on MAP rule. Meanwhile, It carried out similar analysis if CSI was available at source nodes. Compared to ML detection which separately detects two source messages, numerical and simulation results show that LR detection outperforms it in terms of BER metric with the requirement for additional noise variance information. And MAP detection'is equivalent to ML detection, and it has lower computational complexity.关键词
物理层网络编码/最大似然/似然比/最大后验概率/检测Key words
physical-layer network coding/ maximum-likelihood/ likelihood ratio/ maximum a posteriori probability/ detection分类
信息技术与安全科学引用本文复制引用
颜伟,蔡跃明,潘成康..双向中继信道中物理层网络编码的检测[J].通信学报,2012,33(2):82-86,5.基金项目
国家自然科学基金资助项目(60972051,61001107) （60972051,61001107）
国家科技重大专项基金资助项目(2010ZX03006-002-04) （2010ZX03006-002-04）
江苏省自然科学基金资助项目(BK2010101) （BK2010101）
