Physical Layer Service Integration in Wireless Networks : Signal processing challenges
Physical Layer Service Integration in Wireless Networks : Signal processing challenges
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DOI：
10.1109/msp.2013.2271190
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发表时间：
2014-04
影响因子：
14.9
通讯作者：
Rafael F. Schaefer;H. Boche
中科院分区：
文献类型：
--
作者：
Rafael F. Schaefer;H. Boche
下一代无线网络在物理层明智地集成多种服务以提高频谱效率变得越来越重要。在本文中，考虑了无线网络中的物理层服务集成，其中发送者不仅将单独的数据传输到某些接收者，而且还集成必须对非法接收者保密的附加多播或机密服务。在这种情况下，物理层安全技术正在成为加密技术的一个有希望的补充，因为它们仅使用无线信道的物理属性来建立安全性。讨论了某些重要通信场景的最先进解决方案，并确定了信号处理挑战和有前途的研究方向。
It is becoming more important that next-generation wireless networks wisely integrate multiple services at the physical layer to increase spectral efficiency. In this article, physical layer service integration in wireless networks is considered, where senders not only transmit individual data to certain receivers but also integrate additional multicast or confidential services that have to be kept secret from nonlegitimate receivers. In this context, physical layer security techniques are becoming a promising complement to cryptographic techniques since they establish security using only the physical properties of the wireless channel. State-of-the-art solutions for certain important communication scenarios are discussed, and signal processing challenges and promising research directions are identified.