The invention relates to the field of wireless communication, and discloses a resource allocation method for a multi-user multi relay communication system. Including the resource allocation method of the invention comprises: consider a TDD downlink multi-user multi relay system, a transmitter (base station) and a plurality of mobile user receiver through the relay station (user). The system consists of a mobile subscriber receiver and a relay station. The system bandwidth is orthogonal frequency division multiplexing (OFDM) technology, and frequency selective wideband channels are divided into flat fading channels. The base station transmitting end can serve the receiving end of the mobile user through an orthogonal subchannel. Compared with the prior art, the present invention has higher spectral efficiency and does not increase additional feedback overhead. The sum of them is the natural number and the positive rational number.
【技术实现步骤摘要】
【技术保护点】
1.一种多用户多中继通信系统的资源分配方法,其特征在于该方法包括以下步骤:a. 多用户多中继通信系统由一个基站发送端、 个中继站以及个移动用户接收端组成,移动用户均为两跳用户,其中和均为自然数;b. 基站发送端通过个中继站服务个移动用户接收端,获取两跳链路的下行信道信息CSI,并利用现有的子载波分配算法将第二跳链路的子载波分配给个移动用户接收端;c. 基站发送端根据第二跳链路的子载波分配情况和第一跳链路信道状态信息,利用子载波配对技术将第一跳链路的子载波分配给个中继站;d. 在总功率约束下,基站发送端根据两跳链路的子载波分配情况和信道状态信息,为两跳链路的子载波分配发射功率;e. 第一时隙,基站发送端根据预先分配的子载波和发射功率,发送移动用户的信息给相应的中继站;f. 第二时隙,各中继站接收基站发送端发送的信号,并根据第二跳链路的子载波分配情况,解码转发移动用户的信号;g. 移动用户接收中继站转发的信号,解码并进行相应的处理。
【技术特征摘要】
【专利技术属性】
技术研发人员:杨绿溪,吴杨生,余辉,李春国,
申请(专利权)人:东南大学,
类型:发明
国别省市:84
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