放大轉發(fā)中繼網絡中綠色的物理層安全通信技術

王東; 李永成; 白鉑; 王滿喜

doi:10.11999/JEIT150695

放大轉發(fā)中繼網絡中綠色的物理層安全通信技術

doi: 10.11999/JEIT150695 cstr: 32379.14.JEIT150695

2.
(電子信息系統(tǒng)復雜電磁環(huán)境效應國家重點實驗室洛陽 471003) ②(清華大學電子工程系北京 100084) ③(新星技術研究所合肥 230031)

基金項目:

CEMEE國家重點實驗室開放課題基金(CEMEE2015 K0204B)

計量
- 文章訪問數: 1555
- HTML全文瀏覽量: 129
- PDF下載量: 696
- 被引次數: 0
出版歷程
- 收稿日期: 2015-06-08
- 修回日期: 2015-12-25
- 刊出日期: 2016-04-19

Green Communications Based on Physical-layer Security for Amplify-and-forward Relay Networks

2.
(State Key Laboratory of Complex Electromagnetic Environmental Effects on Electronics and Information System, Luoyang 471003, China)

Funds:

The Open Project Foundation of CEMEE State Key Laboratory (CEMEE2015K0204B)

摘要

摘要: 該文基于物理層安全理論，針對能量受限的無線中繼網絡提出一種綠色的保密通信方案。該方案在節(jié)點功率約束和系統(tǒng)最小目標保密速率要求下，通過最優(yōu)功率控制實現系統(tǒng)的安全能效最大化，并基于分式規(guī)劃、對偶分解和DC(Difference of Convex functions)規(guī)劃理論提出了一種迭代的功率分配算法。通過仿真比較，能效優(yōu)化可以顯著提升系統(tǒng)的安全能效，然而相對于保密速率最大化會有一定保密速率損失，這是由于能效和保密之間存在固有的折中。但是，能效優(yōu)化的保密速率仍然大于發(fā)送總功率最小化的保密速率。
- 信息安全 /
- 能量效率 /
- 物理層安全 /
- 功率分配 /
- 放大轉發(fā)中繼
Abstract: In this paper, a green communication scheme based on physical layer security is addressed considering the energy and secrecy constraints. This scheme maximizes the secure Energy Efficiency (EE) of the network by power allocation subject to the maximum power constraint of each node and the target secrecy rate constraint of the network. Furthermore, an iterative algorithm for power allocation is developed based on fractional programming, dual decomposition, and Difference of Convex functions (DC) programming. It is verified by simulations that the proposed algorithm can lead to a significant gain of secure EE yet with some loss of secrecy rate compared with secrecy rate maximization. This is because that there is an inherent tradeoff between EE and secrecy. However, the achievable secrecy rate of the proposed scheme is still superior over that of total transmission power minimization.
- Information security /
- Energy efficiency /
- Physical-layer security /
- Power allocation /
- Amplify-and-forward relaying

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參考文獻(23)

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