CAJ | 학술논문

利用Jensen不等式分析非对称信道下协作通信的中断概率，得到中断概率上下边界，用MATLAB仿真验证该边界的准确性。以确定的系统目标中断概率为前提，提出基于最小化协作域发射总功率的中继选择方案，并分析该方案的性能。仿真证明，在相同信道条件下该方案相对于其他中继选择方案能显著地节省功率。
이용Jensen불등식분석비대칭신도하협작통신적중단개솔，득도중단개솔상하변계，용MATLAB방진험증해변계적준학성。이학정적계통목표중단개솔위전제，제출기우최소화협작역발사총공솔적중계선택방안，병분석해방안적성능。방진증명，재상동신도조건하해방안상대우기타중계선택방안능현저지절성공솔。
In the paper, we utilized Jensen Inequality to analyze outage probability of cooperation communication in asymmetric channel and obtain the upper and lower bound of outage probability, and then verified its accuracy by virtue of MATLAB simulation. In the premise of determinate systematic objective outage probability, we proposed a new scheme of relay selection, which was based on minimizing total transmitting power of cooperative areas and then we analyzed the performance of the scheme. The simulation results show that compared to the other relay selection schemes, the novel scheme can save transmitting power remarkably.