Rethinking the role of interference in wireless networks
Rethinking the role of interference in wireless networks
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DOI：
10.1109/mcom.2014.6957156
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发表时间：
2014-08
影响因子：
11.2
通讯作者：
G. Zheng;I. Krikidis;C. Masouros;S. Timotheou;D. Toumpakaris;Z. Ding
中科院分区：
文献类型：
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作者：
G. Zheng;I. Krikidis;C. Masouros;S. Timotheou;D. Toumpakaris;Z. Ding
本文通过对比传统方法和以创造性方式处理干扰的新概念，重新审视了无线网络中干扰的基本概念。具体来说，我们讨论了干扰信道的基本限制，并提出了干扰对准技术及其对信号对准技术的扩展。与将干扰视为有害现象的传统观点相反，我们引入了三个将干扰视为有用资源的概念。第一个概念利用调制级的干扰，实现简单的多用户下行链路预编码，从而显著节省能源。第二个概念是使用射频辐射来收集能量，并将干扰处理为绿色能源。最后一个概念是指保密环境，并使用干扰作为干扰潜在窃听者的有效手段。这三种技术带来了对无线网络干扰的新看法，并激发了大量潜在的新应用和服务。
This article re-examines the fundamental notion of interference in wireless networks by contrasting traditional approaches to new concepts that handle interference in a creative way. Specifically, we discuss the fundamental limits of the interference channel and present the interference alignment technique and its extension of signal alignment techniques. Contrary to this traditional view, which treats interference as a detrimental phenomenon, we introduce three concepts that handle interference as a useful resource. The first concept exploits interference at the modulation level and leads to simple multiuser downlink precoding that provides significant energy savings. The second concept uses radio frequency radiation for energy harvesting and handles interference as a source of green energy. The last concept refers to a secrecy environment and uses interference as an efficient means to jam potential eavesdroppers. These three techniques bring a new vision about interference in wireless networks and motivate a plethora of potential new applications and services.