| 基于布谷鸟搜索算法的用户选择和干扰对齐 |
| |
| 引用本文： | 肖海林,张文娟,聂在平,王茹.基于布谷鸟搜索算法的用户选择和干扰对齐[J].电子科技大学学报（自然科学版）,2017,46(6):801. |
| |
| 作者姓名： | 肖海林 张文娟 聂在平 王茹 |
| |
| 作者单位： | 1.广西无线宽带通信与信号处理重点实验室(桂林电子科技大学) 广西 桂林 541004 |
| |
| 基金项目： | 国家自然科学基金61261018国家自然科学基金61472094广西自然科学基金杰出青年基金2014GXNSFGA118007广西自然科学基金重点项目2011GXNSFD018028东南大学移动通信重点实验室开放基金2015D05 |
| |
| 摘 要： | 为了实现蜂窝系统中单小区边缘用户正常通信，减少相邻小区间多个边缘用户对本小区边缘用户造成的干扰，提出了一种基于布谷鸟搜索算法的用户选择和干扰对齐算法。该算法首先用布谷鸟搜索算法对小区边缘用户进行选择，接着采用干扰对齐方法消除相邻小区间的干扰，最后通过预编码和基于最小均方差（MMSE）译码方法消除小区内用户间的干扰。该布谷鸟搜索算法与快速排序搜索算法相比具有更低的时间复杂度。数值分析表明与基于迫零算法的译码方法相比，该译码方法能够提高系统容量2 b·s-1·Hz-2，改善误码率4 dB。
|
| 关 键 词： | 布谷鸟搜索算法 编码和译码 干扰对齐 系统容量 |
| 收稿时间： | 2016-03-13 |
User Selection Based on Cuckoo Search Algorithm and Interference Alignment |
| |
| Affiliation: | 1.Guangxi Key Laboratory of Wireless Wideband Communication and Signal Processing(Guilin University of Electronic Technology) Guilin Guangxi 5410042.National Mobile Communications Research Laboratory, Southeast University Nanjing 2100963.Guangxi Experiment Center of Information Science Guilin Guangxi 5410044.School of Electronic Engineering, University of Electronic Science and Technology of China Chengdu 610054 |
| |
| Abstract: | In cellular system, to reduce the interference of the cell-edge users and ensure communication among the cell-edge users of a single cell, a user selection scheme based on cuckoo search algorithm and interference alignment algorithm is proposed.First, the cell-edge users are selected by the cuckoo search algorithm. Then interference alignment scheme is adopted to eliminate interference.Finally, an encoding and decoding based on MMSE criterion are applied to eliminate interference among users.Compared with the quick sort search algorithm, the proposed scheme based on cuckoo search algorithm has less time complexity.And numerical results show that, compared to zero-forcing decoding, the proposed algorithm will increase the system capacity by 2 b·s-1·Hz-2, and the bit error rate improvement is about 4 dB. |
| |
| Keywords: | |
|
| 点击此处可从《电子科技大学学报（自然科学版）》浏览原始摘要信息 |
|
点击此处可从《电子科技大学学报（自然科学版）》下载全文 |
