无线EH协作通信系统若干典型场景中的数据与能量协作策略研究

As wireless EH communication systems are different from traditional communication systems, we need new models and policies to achieve an optimal balance between the quality of service, performance, and efficient use of energy. Based on prophase investigation and research, we plan to carry out the policy studies of the data and energy cooperation in several typical scenarios of wireless EH cooperative communication systems, including the multiuser communication scenarios, the MIMO transmission scenarios, and the distributed cooperation scenarios. To be specific, in the multiuser communication scenarios, the data and energy cooperation will be considered when the information of users comes from multiple source nodes. For different users, the resource allocation at the source and the relays, the slot designs, the cooperative policy and the energy-saved relay selection will be dealt with, respectively. In the MIMO transmission scenarios, we will consider the data and energy antenna selection on which the data and energy cooperation depends. Besides, other data and energy cooperative schemes, different from the antenna selection ways, will be investigated and compared for the multiuser MIMO transmission. In the distributed cooperation scenarios, the cooperative models in the intra-cell and inter-cell areas, in terms of the distributed relay nodes and distributed ports, will be established for the investigations on the energy sharing mechanism and corresponding data and energy cooperation methods, and also for the similarities and differences of two cooperation modes on the working principles, the applications and the implementations. In conclusion, this project has been prepared according to the sufficient research basis, clear research goals and scientific and rational research content. The results out from our studies will be beneficial to solve the emerging problems of the data and energy cooperation, and design the practical wireless EH cooperative communication systems.

鉴于无线EH系统的工作模式在很大程度上区别于传统意义上的无线系统，需要建立新的模型，设计新的通信方法，本项目计划在无线EH协作通信系统的若干典型场景中开展数据与能量协作策略的研究。在多用户场景中，重点考虑用户信息来自多个源节点时的数据与能量协作，分析多用户的源节点和中继节点的资源分配、时隙设计、协作策略以及优化能量利用的中继选择等。在MIMO传输场景中，重点研究MIMO数据与能量协作可依赖的数据与能量天线选择以及多用户MIMO传输时的数据与能量协作方式和策略。在分布式协作场景中，重点研究分布式协作中的能量共享机制及其基础上的数据与能量协作策略，探讨分布式中继站点协作和分布式端口协作在工作原理、应用场景、实施效果等方面的异同。总的来说，项目的研究依据充分，目标明确，内容科学合理，有助于解决无线EH协作通信系统中的数据与能量协作问题，对未来无线EH协作通信系统的设计与应用有着重要和现实的意义。

针对无线EH协作通信系统中的数据与能量天线选择、数据与能量资源分配、分布式资源调度等典型问题，本项目对无线EH协作通信系统单用户和多用户场景中的数据与能量天线选择、无线EH分布式天线系统的数据与能量协作以及无线EH中继通信的能量优先、能量补偿等技术问题进行了深入的研究。在数据与能量天线选择问题上，建立了单用户和多用户场景中的数据与能量协作模型，研究了数据和能量天线选择的最优性能和次优策略，包括降低天线选择复杂度的方法。在无线EH分布式天线系统的数据与能量协作上，研究了无线EH分布式天线系统的能量共享、功率分配、端口选择策略以及小区关联、缩放和用户调度策略。在无线EH中继通信的数据与能量协作上，研究了基于上下行链路能效联合优化的资源分配、基于能量货币机制、价格机制的能量优先、能量补偿等机制。本项目取得了一系列的研究成果，解决了无线EH协作通信中的若干典型问题，丰富了能量收集通信系统和协作通信系统融合的理论成果，加深了对数据与能量协作传输这一技术手段的理解，对无线EH协作通信系统的设计与应用有重要和现实的意义。