CAJ | 학술논문

在双向信息非对称条件下，研究了基于模拟网络编码的双向中继信道中的最优功率分配问题。分别给出了中断概率最小化、和速率最大化意义下的最优功率分配闭式数学表达式，并证明了两种约束下最优功率分配问题的统一性。分析表明：现有的基于模拟网络编码的双向中继信道中的最优功率分配方法是本文提出方法在某些条件下的特例。计算机仿真分析证明了提出的最优功率分配方法在中断概率和和速率性能方面均优于平均功率分配方法。
재쌍향신식비대칭조건하，연구료기우모의망락편마적쌍향중계신도중적최우공솔분배문제。분별급출료중단개솔최소화、화속솔최대화의의하적최우공솔분배폐식수학표체식，병증명료량충약속하최우공솔분배문제적통일성。분석표명：현유적기우모의망락편마적쌍향중계신도중적최우공솔분배방법시본문제출방법재모사조건하적특례。계산궤방진분석증명료제출적최우공솔분배방법재중단개솔화화속솔성능방면균우우평균공솔분배방법。
In this paper,the optimal power allocation problem of two-way relay channel (TWRC)system with analog network coding (ANC)is discussed with asymmetric transmission requirements.The paper provides the closed-form ex-pressions for optimum power allocation in terms of minimum outage probability and maximum sum-rate respectively.It also shows that the two types of optimum power allocation schemes are exactly the same.The analysis indicates that some exist-ing optimal power allocation schemes of TWRC with ANC are special cases of the proposed scheme.Moreover,simulation results show that the achievable outage probability and sum-rate performance of the proposed unified optimum power alloca-tion scheme outperforms that of the uniform power allocation scheme.