| 全双工双向中继系统的功率分配方案 |
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| 引用本文： | 葛佳,邱梦婷,俞晖.全双工双向中继系统的功率分配方案[J].上海师范大学学报(自然科学版),2017,46(1):110-116. |
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| 作者姓名： | 葛佳 邱梦婷 俞晖 |
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| 作者单位： | 上海交通大学 电子信息与电气工程学院, 上海 200240,上海交通大学 电子信息与电气工程学院, 上海 200240,上海交通大学 电子信息与电气工程学院, 上海 200240 |
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| 基金项目： | 国家科技支撑课题（2015BAD17B04） |
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| 摘 要： | 提出了最大化系统的频谱效率(SE)和能量效率(EE)两种功率分配方案.EE优化问题用迭代算法求解,首先运用分式规划的方法把优化问题转变成易求解的非分式优化问题,然后运用Dinkelbach算法求得用户节点的最佳功率,再运用一维搜索求得最佳中继放大系数,最后利用迭代算法求得EE最大值.SE优化问题同样用迭代算法求解.仿真结果显示,针对不同目标函数的两种功率分配方案分别提高了系统的EE和SE,同时迭代算法能够快速收敛获得最优解.
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| 关 键 词： | 频谱效率 能量效率 全双工 双向中继 |
| 收稿时间： | 2016/12/12 0:00:00 |
Power allocation schemes for full-duplex two-way relay systems |
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| Ge Ji,Qiu Mengting and Yu Hui.Power allocation schemes for full-duplex two-way relay systems[J].Journal of Shanghai Normal University(Natural Sciences),2017,46(1):110-116. |
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| Authors: | Ge Ji Qiu Mengting and Yu Hui |
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| Institution: | School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China,School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China and School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | Two power allocation schemes are presented to maximize SE and EE respectively.An iterative algorithm is used to solve the EE optimization problem.Firstly,the EEoptimization problem is transformed into a tractable non-fractional one by using the fractional programming method,and then the Dinkelbach algorithm is used to obtain the optimal power of the users,and then one-dimensional search is used to obtain the best relay amplification factor,and finally an iterative algorithm is used to maximize EE.SE optimization problem is also solved bythe iterative algorithm.The simulation results show that the two power allocation schemes aimed at different objective functions improve the EE and SE of the system respectively,and the iterative algorithm can converge quickly to obtain the optimal solution. |
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| Keywords: | spectral efficiency energy efficiency full-duplex two-way relay |
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