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针对目前中继网络动态资源分配最优解尚不完善的问题,通过将信息论和有效容量有机地结合,独立求解出估计转发(EF)中继网络动态资源分配的最优解,并以典型网络为例,基于动态资源分配提出了一种自适应中继网络方案,可以根据系统QoS指数要求在现有放大转发(AF)、解码转发(DF)和估计转发(EF)3种中继协议中进行动态选择.数值与仿真分析表明,动态资源分配方案可以很好地在给定系统QoS指数限制下最大化中继网络的有效容量,同时自适应中继网络方案比传统的单一中继方案能更好地提高系统的吞吐量.
Aiming at the problem that the optimal solution of the dynamic resource allocation in the relay network is not yet perfect, the optimal solution of the dynamic resource allocation in the estimated relay (EF) relay network is solved independently by combining the information theory with the effective capacity. As an example, an adaptive relay network scheme based on dynamic resource allocation is proposed. According to the requirement of system QoS index, in the existing relay protocols of AF, DF and EF, The dynamic selection is carried out.The numerical and simulation results show that the dynamic resource allocation scheme can well maximize the effective capacity of the relay network under the constraints of the given system QoS index while the adaptive relay network scheme can outperform the traditional single relay scheme Better improve system throughput.