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针对协同无线网络中多终端协作通信的信道分配和功率优化问题,在源节点和目的节点之间实现了基于多种传输方式(直接传输、复用传输和中继传输)的并行数据传输,并通过将终端节点建模为能量卖家,提出了基于能量价格的信道分配与功率控制联合的优化方案.仿真结果表明,并行传输方式下采用新方案所消耗的系统能耗成本和所获得的网络生存时间明显优于单一传输方式.此外,通过引入能量价格激励机制,证明了在相同并行传输方式下最优速率分配比平均速率分配在系统性能上有显著改善.
Aiming at the problem of channel assignment and power optimization of multi-terminal cooperative communication in cooperative wireless network, parallel data transmission based on multiple transmission modes (direct transmission, multiplex transmission and relay transmission) is realized between the source node and the destination node By modeling terminal nodes as energy sellers, an optimization scheme based on energy price combining channel allocation and power control is proposed.The simulation results show that the cost of system energy consumed by the new scheme under parallel transmission and the network survival Time is obviously better than the single transmission method.In addition, by introducing the energy price incentive mechanism, it is proved that the optimal rate allocation has a significant improvement on the system performance under the same parallel transmission mode than the average rate allocation.