作　　者： ; ; ; ; ;

机构地区： 北京邮电大学信息与通信工程学院泛网无线通信教育部重点实验室

出　　处： 《北京邮电大学学报》 2009年第2期34-38,共5页

摘　　要： 提出一种应用于中继蜂窝网络的混合型协作中继选择算法(HCRSA).当用户采用中继传输时,为实现协作通信,HCRSA算法根据当前小区中的用户密度情况,动态地选择了基站和中继节点之间的协作传输,或中继节点和协作用户之间的协作传输.仿真结果表明,与固定中继选择相比,HCRSA能根据网络中的实际情况选择不同的协作中继机制,充分利用协作中继来有效提高用户容量,提升系统性能. A hybrid cooperative relay selection algorithm （HCRSA） is presented for relay based cellular networks. According to current user density in a certain cell, when two-hop transmission mechanism is adopted, HCRSA will be adapted selectively between two different cooperation schemes. These are realized either between the parallel transmission between the base station and a relay node or by adopting parallel transmission between another mobile terminal and relay node. Simulations demonstrate that, compared with fixed relay selection schemes, HCRSA can dynamically choose different cooperative strategies according to current user condition in the cell by fully utilizing cooperative communication so as to increase effectively the user capacity and as to improve system performance as well.

关 键 词： 中继选择 中继蜂窝网络 协作中继 协作分集

领　　域： [电子电信] [电子电信]