南京大学学报(自然科学版) ›› 2019, Vol. 55 ›› Issue (2): 202–210.doi: 10.13232/j.cnki.jnju.2019.02.005
彭 宏1，刘 晨1，卢为党1*，张 昱1，刘 鑫2，徐志江1
Peng Hong1，Liu Chen1，Lu Weidang1*，Zhang Yu1，Liu Xin2，Xu Zhijiang1
摘要： 为了让协作中继传输网络中的中继节点能够获得能量自愿协作转发源节点的信息，提高信息的传输效率，提出一种基于无线供电的能量交易方法. 所提方法中包含一个源节点和目的节点以及一个中继节点和多个能源供应点(Energy Supply Points，ESP). 当源节点到目的节点链路的信道质量较差时，需要中继节点帮助转发源节点的信息到目的节点. 但是中继节点往往是自私的，不愿意牺牲自己的能量帮助转发别人的信息. 为了使得中继节点愿意帮助转发源节点的信息，目的节点支付给周围ESP一定的报酬，以换取其通过无线供电的方式给中继节点提供能量，使得中继节点能够利用接收到的能量帮助转发源节点的信息. 通过利用斯塔克尔伯格模型，研究如何对所提方法中目的节点支付给ESP的报酬和ESP提供给中继节点的能量进行优化，最大化目的节点和ESP双方的效用. 仿真结果表明，本文所提的能量交易方法能够让目的节点和ESP的效用同时达到最优值，有效提高信息的传输效率．
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| [1] Laneman J N，Tse D N C，Wornell G W. Cooperative diversity in wireless networks：Efficient protocols and outage behavior. IEEE Transac－tions on Information Theory，2004，50(12)：3062－3080. [2] Bletsas A，Khisti A，Reed D P，et al. A simple cooperative diversity method based on network path selection. IEEE Journal on Selected Areas in Communications，2006，24(3)：659－672. [3] Bi S Z，Ho C K，Zhang R. Wireless powered communication：Opportunities and challenges. IEEE Communications Magazine，2015，53(4)：117－125. [4] Huang K B，Zhou X Y. Cutting the last wires for mobile communications by microwave power transfer. IEEE Communications Magazine，2015，53(6)：86－93. [5] Lu X，Wang P，Niyato D，et al. Wireless networks with RF energy harvesting：A contemporary survey. IEEE Communications Surveys & Tutorials，2015，17(2)：757－789. [6] Niyato D，Kim D I，Wang P，et al. A novel caching mechanism for Internet of Things(IoT)sensing service with energy harvesting ∥ IEEE International Conference on Communications. Kuala Lumpur，Malaysia：IEEE Press，2016：1－6. [7] Visser H J，Vullers R J M. RF energy harvesting and transport for wireless sensor network applications：Principles and requirements. Proceedings of the IEEE，2013，101(6)：1410－1423. [8] Chen H，Li Y H，Rebelatto J L，et al. Harvest－then－cooperate：Wireless－powered cooperative communications. IEEE Transactions on Signal Processing，2015，63(7)：1700－1711. [9] Ju H，Zhang R. User cooperation in wireless powered communication networks ∥ IEEE Global Communications Conference. Austin，TX，USA：IEEE，2015：1430－1435. [10] Ju H，Zhang R. Throughput maximization in wireless powered communication networks. IEEE Transactions on Wireless Communications，2014，13(1)：418－428. [11] Krikidis I，Timotheou S，Sasaki S. RF energy transfer for cooperative networks：Data relaying or energy harvesting？IEEE Communications Letters，2012，16(11)：1772－1775. [12] Zeng Y，Zhang R. Full－duplex wireless－powered relay with self－energy recycling. IEEE Wireless Communications Letters，2015，4(2)：201－204. [13] Lu W D，Gong Y，Wu J Y，et al. Simultaneous wireless information and power transfer based on joint subcarrier and power allocation in OFDM systems. IEEE Access，2017，5：2763－2770. [14] Lu W D，Fang S Z，Gong Y，et al. Resource allocation for OFDM relaying wireless power transfer based energy－constrained UAV communication network ∥ IEEE International Conference on Communications Workshops. Kansas City，KS，USA：IEEE Press，2018：1－6. [15] Huang C，Zhang R，Cui S G. Throughput maximization for the Gaussian relay channel with energy harvesting constraints. IEEE Journal on Selected Areas in Communications，2013，31(8)：1469－1479. [16] Medepally B，Mehta N B. Voluntary energy harvesting relays and selection in cooperative wireless networks. IEEE Transactions on Wireless Communications，2010，9(11)：3543－3553. [17] Zhang Y R，Pan M，Song L Y，et al. A survey of contract theory－based incentive mechanism design in wireless networks. IEEE Wireless Communications，2017，24(3)：80－85. [18] Gao L，Wang X B，Xu Y Y，et al. Spectrum trading in cognitive radio networks：A contract－theoretic modeling approach. IEEE Journal on Selected Areas in Communications，2011，29(4)：843－855. [19] Wang H B，Gao L，Gan X Y，et al. Cooperative spectrum sharing in cognitive radio networks：A game－theoretic approach ∥ IEEE International Conference on Communications. Cape Town，South Africa：IEEE Press，2010：23－27. |
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