| Two-path中继系统中基于最小化中断概率的功率分配方法 |
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| 引用本文： | 方恒刚,李 莉,张 静,罗汉文. Two-path中继系统中基于最小化中断概率的功率分配方法[J]. 计算机应用研究, 2013, 30(4): 1127-1129 |
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| 作者姓名： | 方恒刚 李 莉 张 静 罗汉文 |
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| 作者单位： | 1. 上海师范大学 信息与机电工程学院, 上海 200234; 2. 上海交通大学 电子工程系, 上海 200240 |
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| 基金项目： | 国家自然科学基金资助项目（61101209）; 上海市自然科学基金资助项目（11ZR1426600）; 上海市教育委员会科研创新项目（12ZZ126） |
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| 摘 要： | 为了降低two-path中继系统的通信中断概率,针对DF协议中继,推导了two-path中继系统在存在中继间干扰情况下的中断概率闭式解,并在总功率受限的情况下,提出了一种最小化中断概率的最优功率分配算法。仿真验证结果表明该算法能够有效地降低系统的中断概率,提高系统的性能。
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| 关 键 词： | two-path中继 互信息量 中断概率 功率分配 |
Optimal power allocation scheme based on minimizing outage probability in two-path relay system |
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| FANG Heng-gang,LI Li,ZHANG Jing,LUO Han-wen. Optimal power allocation scheme based on minimizing outage probability in two-path relay system[J]. Application Research of Computers, 2013, 30(4): 1127-1129 |
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| Authors: | FANG Heng-gang LI Li ZHANG Jing LUO Han-wen |
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| Affiliation: | 1. School of Information & Electronic, Shanghai Normal University, Shanghai 200234, China; 2. Dept. of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | In order to decrease the outage probability of two-path relay system, this paper derived a closed-form solution of outage probability in DF two-path relay system with the inter-relay interference, and then proposed an optimal power allocation algorithm to minimize the outage probability under the limited total power. The simulation results show that this algorithm can effectively decrease the outage probability and improve the performance of the system. |
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| Keywords: | two-path relay mutual information outage probability power allocation |
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