SCMA系统中基于等效频谱带宽的无线资源分配

Effective spectral bandwidth-based radio resource assignment for SCMA system

文中在用户信道状态信息已知的前提下设计了一种基于等效频谱带宽的SCMA资源分配方法。建立了用户业务传输速率要求与SCMA系统基站端频谱带宽的映射关系,该映射关系称为等效频谱带宽,然后以等效频谱带宽为单位进行资源分配。该方案不仅保证了SCMA系统上行链路的吞吐量最大,而且满足了各用户业务的QoS。

Under the condition that perfect CSI is known,this paper proposes a novel resource assignment method based on the effective spectral bandwidth in SCMA system. A mapping relation between the user service transmission rate requirements and the base station spectrum bandwidth of the SCMA system is constructed,called the effective spectral bandwidth. The effective spectral bandwidth can be used as a metric to allocate resources. The method can ensure the maximization uplink throughput of the SCMA system and satisfy the QoS of each user service.