节点能量受限是多跳无线网络存在的共性问题。无线携能传输利用同一个射频信号进行信息传输和能量补充，是延长节点生命周期的有效方法，当前研究主要集中在单跳和两跳无线网络。当携能传输应用到多跳无线网络，节点可将收到的能量作为数据转发能量消耗的补偿，从而均衡网络能量分布，但信息和能量资源分配与路由选择相互影响依存使得应用极具挑战性。因此，本项目研究多跳网络中的携能传输，挖掘多维资源因素与传输目标的映射关系，建立多跳网络的携能传输模型；在单流、动态多流、不可靠的环境下，研究路由选择和信息能量分配对端到端传输的影响和约束、选路策略对多流干扰的影响和代价机理，提出单流携能传输路由、干扰感知的选路策略和鲁棒携能传输路由来优化资源分配和路由选择，以保障端到端传输高效性和鲁棒性。通过本项目研究和探索，可突破多跳无线网络生命周期极限、提升网络可用性和持久性，进一步扩展应用场景。

Energy-constrained node is a common problem of multi-hop wireless networks. Simultaneous wireless information and power transfer (SWIPT) transmits information and powers wireless nodes with the same radio frequency signal, which can prolong the life time of the energy-constrained nodes. Current works of SWIPT focus on one-hop and two-hop wireless network. When SWIPT is applied in multi-hop wireless network, the energy harvested by the receiver node can be as a energy compensation for data forwarding, which can balance energy distribution. However, the allocation of information and energy and the route selection in multi-hop wireless network with SWIPT are interdependent, which is challenge. Therefore, this project studies the problem of SWIPT in multi-hop wireless network. First, based on the relationship between various resources and the goal of SWIPT, we formulate the SWIPT model in multi-hop network. Second, in the single flow, multiple flows and unstable networks, we study the effects and constrains between the end-to-end transmission, routing selection and the allocation of information and energy, and the effects and cost mechanisms between path selection strategy and multiple flows interference. We propose the single flow SWIPT routing, the interference-aware SWIPT routing and the robust SWIPT routing for optimizing resource allocation and routing selection and ensuring the high efficiency and robustness of end-to-end transmission. According to the proposed research, we will verify that SWIPT in multi-hop wireless network can break the limit of multi-hop wireless networks' life time, improve network availability and durability, and further expand the application scenarios.