Power Allocation for Energy Efficiency and Secrecy of Wireless Interference Networks
Power Allocation for Energy Efficiency and Secrecy of Wireless Interference Networks
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DOI：
10.1109/twc.2018.2815626
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发表时间：
2018-06-01
影响因子：
10.4
通讯作者：
Poor, H. Vincent
中科院分区：
文献类型：
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作者：
Sheng, Zhichao;Tuan, Hoang Duong;Poor, H. Vincent
考虑具有窃听者的多用户干扰网络，本文旨在通过功率分配来优化网络链路中最差的保密吞吐量，或者根据链路安全要求下每焦耳实现的保密吞吐量来优化安全能源效率。信道状态信息的获取考虑了三种场景： 完美的信道状态信息；部分信道状态信息，其中从发射机到窃听者的信道呈指数分布；并且发射机和用户之间的信道不完全已知，误差呈指数分布。本文开发了各种低复杂度和快速收敛的路径跟踪程序，以实现最佳功率分配。通过数值示例说明了它们的有效性和可行性。功率分配方案被证明可以实现高保密吞吐量和能源效率。
Considering a multi-user interference network with an eavesdropper, this paper aims at the power allocation to optimize the worst secrecy throughput among the network links or the secure energy efficiency in terms of achieved secrecy throughput per Joule under link security requirements. Three scenarios for the access of channel state information are considered: the perfect channel state information; partial channel state information with channels from the transmitters to the eavesdropper exponentially distributed; and not perfectly known channels between the transmitters and the users with exponentially distributed errors. The paper develops various path-following procedures of low complexity and rapid convergence for the optimal power allocation. Their effectiveness and viability are illustrated through numerical examples. The power allocation schemes are shown to achieve both high secrecy throughput and energy efficiency.