摘要
针对异构协同中继信道的特点,提出了上、下行的异构协同中继信道模型.异构协同中继信道与之前研究的同构协同中继信道存在着不同.从理论上对异构协同中继信道的容量进行了分析,并与同构协同中继信道进行比较,说明2种不同中继信道的优缺点以及各自适用的场景.用数值例子详细说明中继、基站和移动台之间功率的分配以及中继的位置对协同中继信道的容量产生的影响,进一步分析同构和异构上、下行中继协同信道的异同和在容量上的差异.
Considering the characteristics of heterogeneous cooperative relay channel, the uplink and downlink relay channel models are presented. Analysis on the capacity of the heterogeneous cooperative relay channel is given, and compared with homogenous cooperative relay channel, in order to elaborate the advantages and disadvantages of the two different relay channels, as well as the applicable scene. A numerical example is given to describe how the power distribution and the location of the relay impact on the capacity of the relay channel. The differences between the two different relay channels are analyzed.
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
2008年第4期77-81,共5页
Journal of Beijing University of Posts and Telecommunications
基金
国家"863计划"项目(2006AA01Z257)
关键词
异构中继
同构中继
协同中继
信道容量
heterogeneous relay
homogeneous relay
cooperative relay
channel capacity
