| Two-way中继系统中基于最小化中断概率的功率分配策略* |
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| 引用本文： | 刘通,陈前斌,唐伦,张力生.Two-way中继系统中基于最小化中断概率的功率分配策略*[J].计算机应用研究,2011,28(3):1108-1110. |
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| 作者姓名： | 刘通 陈前斌 唐伦 张力生 |
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| 作者单位： | 重庆邮电大学通信与信息工程学院,重庆,400065 |
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| 基金项目： | 国家自然科学基金资助项目 重庆市自然科学基金重点项目 |
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| 摘 要： | 为了降低Two-Way中继系统中断概率，本文提出了一种Two-Way 中继系统中基于最小化中断概率的功率分配策略。首先推导了Two-way中继系统中断概率的闭合表达式，然后在总功率受限的条件下，提出了一种最小化中断概率的最优功率分配策略（OPA）。通过拉格朗日乘数法对该优化模型进行了求解。仿真结果证明了该策略能够有效的降低系统的中断概率，提高系统性能。
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| 关 键 词： | Two-Way中继 中断概率 功率分配 |
| 收稿时间： | 2010/7/13 0:00:00 |
| 修稿时间： | 2/2/2011 12:00:00 AM |
Optimal power allocation scheme based on minimizing outage probability in Two-way relay system |
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| LIU Tong,CHEN Qian-bin,TANG Lun,ZHANG Li-sheng.Optimal power allocation scheme based on minimizing outage probability in Two-way relay system[J].Application Research of Computers,2011,28(3):1108-1110. |
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| Authors: | LIU Tong CHEN Qian-bin TANG Lun ZHANG Li-sheng |
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| Affiliation: | (School of Communication & Information Engineering, Chongqing University of Posts & Telecommunications, Chongqing 400065, China) |
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| Abstract: | In order to decrease the outage probability of Two-way relay system, this paper proposed an optimal power allocation scheme based on minimizing outage probability. It first derived the close form of outage probability in Two-way relay system, then proposed an optimal power allocation (OPA) scheme to minimize the outage probability under the condition that total power was limited. Solved the optimal model by Lagrange multiplier method. Simulation result shows that the proposed strategy can decrease the outage probability and enhance the performance of the system. |
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| Keywords: | Two-way Relay Outage Probability Power Allocation |
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