广义分布式网络架构下的多用户联合干扰抑制  

Multi-User Joint Interference Suppression in Generalized Distributed Network

作　　者：徐瑨[1] 陶小峰[1] 刘宝玲[1] 张平[1] 

机构地区：[1]北京邮电大学电信工程学院

出　　处：《电子学报》2007年第B06期141-145,共5页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60496312;No.60702051);国家863高技术研究发展计划(No.2006AA01Z260;No.2007AA01Z261);新世纪优秀人才支持计划(No.NCET-05-0116)

摘　　要：针对广义分布式网络架构中相邻小区多用户干扰抑制的理论空白,构建了干扰小区集合的系统模型,继而提出两种该架构下可行的多用户联合干扰抑制算法.其中,交叉迭代联合检测(CI-JD,Crossed Iterative Joint Detec- tion)算法利用多用户之间的逐级干扰消除,可以在运算复杂度增加不多的情况下显著改善系统性能;全局联合检测(G-JD,Global Joint Detection)算法通过对多用户信息的统一建模,有效抑制了相邻小区用户间的干扰,同时获得系统分集增益.仿真结果验证了本文所述两种算法的可行性及有效性.In order to solve the problem of multi-ttser interference among neighbor cells under generalized distributed network, system model of interference cell set is established, followed by two proposed algorithms for multi-ttser joint interference suppression. In which, the Crossed Iterative Joint Detection （CI- JD ） algorithm performs stepwise interference cancellation among multiusers and could improve the system performance effectively with a little extra complexity,while the Global Joint Detection （G-JD） algorithm builds a unified model with multi-users＇ information and could not only restrain multi-user interference but also obtain diversity gain in the process of detection. Simulation results validate the feasibility and significant effect of the two algorithms.

关 键 词：广义分布式网络 多用户干扰 交叉迭代联合检测 干扰消除 全局联合检测 

分 类 号：TN929.533[电子电信—通信与信息系统]