Selection of relay UE with energy harvesting capabilities in public safety environment
Selection of relay UE with energy harvesting capabilities in public safety environment
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DOI：
10.1109/icoin.2016.7427085
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发表时间：
2016-01
期刊：
影响因子：
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通讯作者：
Daniyal Munir;S. T. Shah;Won-Jin Lee;M. Chung;S. F. Hasan
中科院分区：
文献类型：
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作者：
Daniyal Munir;S. T. Shah;Won-Jin Lee;M. Chung;S. F. Hasan
中继是PS环境中广泛提出的多跳通信解决方案。然而，所选择的继电器是能量受限的，不能无限地持续下去。能量收集可以解决这个问题，并使多跳D2D通信成为PS服务的可行解决方案。本文研究了器件对器件（D2D）通信中能量收集继电器的选择。考虑到公共安全环境，一些用户设备（UE）位于eNB覆盖范围之外。对于覆盖UE之外的UE，可以通过中间中继UE与eNB通信，这些中间中继UE的选择是本工作的主要重点。基于潜在中继UE与覆盖外UE之间的D2D链路以及潜在中继UE的估计收获能量，选择一个中继UE来支持覆盖外UE。基于中继的方法使D2D通信能够结合基于网络可用性的蜂窝和自组织操作。在继电器终端处的能量收集参数使其独一无二，用于延长继电器终端的快速耗尽电池的寿命。能量收集和D2D链路质量对中继UE选择的影响一直是本工作关注的主题。通过系统级仿真对该方案进行了评价。
Relaying is a widely proposed solution for multi-hop communication in PS environments. However, the selected relay is energy constrained and cannot go on indefinitely. Energy harvesting can solve this problem and make multi-hop D2D communication a viable solution for PS services. In this paper, selection of energy harvesting relay has been studied for device-to-device (D2D) communications. Public safety environment has been considered, where some user equipments (UE) are located out of the coverage area of eNodeB (eNB). For out of the coverage UEs, communication with the eNB is possible through an intermediate relay UE and selection of those intermediate relay UEs is the main focus of this work. Based on D2D link between potential relay UE and out of coverage UEs and estimated harvested energy at potential relay UE, a relay UE is selected to support out of coverage UEs. The relay-based approach enables D2D communications to incorporate cellular and ad hoc operations based on the network availability. The energy harvesting parameter at the relay UE make it unique, which is used to extend the life of rapidly drained battery of a relay UE. The effect of energy harvesting and D2D link quality on the selection of a relay UE has been topics of focus in this work. The proposed scheme is evaluated through system level simulations.