| 基于级联信息素更新蚁群算法的多用户检测 |
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| 引用本文： | 胡熹,刘宏立,徐琨,段伟.基于级联信息素更新蚁群算法的多用户检测[J].传感器与微系统,2012,31(10):129-132. |
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| 作者姓名： | 胡熹 刘宏立 徐琨 段伟 |
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| 作者单位： | 湖南大学电气与信息工程学院,湖南长沙,410082 |
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| 基金项目： | 国家自然科学基金面上项目，湖南省科技计划资助项目 |
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| 摘 要： | 给出了基本蚁群算法在多用户检测中的具体实现,同时针对基本蚁群算法易陷入局部最优解的缺点,提出了一种改进蚁群算法的多用户检测方法。该算法对蚁群算法的信息素更新采用串联式的多级更新策略,首先进行有选择性的信息素更新,然后引进随机扰动因子进一步修改信息素,最后采用最大门限确定信息素的范围。最终的仿真结果表明:所提出的级联信息素更新蚁群算法的多用户检测(UCP-ACO-MUD)算法具有较强的跳出局部最优解的性能,效果良好。
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| 关 键 词： | 码分多址 多用户检测 蚁群算法 信息素 |
Multiuser detection based on updating of cascade pheromone ant colony algorithm |
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| HU Xi
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LIU Hong-li
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XU Kun
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DUAN Wei.Multiuser detection based on updating of cascade pheromone ant colony algorithm[J].Transducer and Microsystem Technology,2012,31(10):129-132. |
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| Authors: | HU Xi LIU Hong-li XU Kun DUAN Wei |
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| Affiliation: | (School of Electrical and Information Engineering,Hunan University,Changsha 410082,China) |
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| Abstract: | Realization of basic ant colony algorithm in multi-user detection is presented,and aiming at the shortcomings of the basic ant colony algorithm is easy to fall into local optimal solution.An improved ant colony algorithm for multi-user detection is proposed.The algorithm updates pheromone using the tandem multi-stage renew strategy.Firstly,updates selective pheromone.Secondly,introduces the random disturbance factor to further modify the pheromone.Thirdly,uses the maximum threshold to determine the range of the pheromone.The simulation results show that the proposed updating of cascade pheromone ant colony optimization multiuser detection(UCP-ACO-MUD)algorithm has strong performance of out of the local optimal solution and good effect. |
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| Keywords: | code division multiple access(CDMA) multiuser detection ant colony algorithm pheromone |
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