CAJ | 학술논문

研究了接收节点将其译码状态反馈给其他节点这一增强性手段对解码转发协作的性能改善情况.推导了低信噪比条件下,增量中继、选择中继的中断概率和吞吐量表达式,给出了中断概率的三阶近似式.结合增量中继、选择中继的各自优点,提出了一种联合中继模式.理论分析和数值仿真表明,提出的联合中继模式在中断概率和吞吐量2个方面性能优越.
연구료접수절점장기역마상태반궤급기타절점저일증강성수단대해마전발협작적성능개선정황.추도료저신조비조건하,증량중계、선택중계적중단개솔화탄토량표체식,급출료중단개솔적삼계근사식.결합증량중계、선택중계적각자우점,제출료일충연합중계모식.이론분석화수치방진표명,제출적연합중계모식재중단개솔화탄토량2개방면성능우월.
An enhancement was proposed that the receiving node feeds back its decoding state to the other nodes. Further, the enhancement can improve the performance of decode-and-forward cooperative diversity. The outage probability and throughput of incremental relay and selection relay were derived in low SNR, and the three-order approximation of out-age probability was presented. Combined with the strong points of incremental relay and selection relay, joint relay was brought forward. The theoretical analysis and numerical simulation reveal that the proposed joint relay has such pre-dominant performances as outage probability and throughput.