基于隨機天線陣的物理層安全通信系統(tǒng)峰均功率比問題研究
doi: 10.11999/JEIT140089 cstr: 32379.14.JEIT140089
基金項目:
國家自然科學基金(61302102, 61271232)，江蘇省屬高校自然科學研究面上項目(13KJB510023)，國家博士后自然科學基金(2013M531390)和南京郵電大學人才引進項目(NY212020)資助課題
Research on Peak-to-average Power Ratio Problem for the Physical Layer Security Communication System Using Random Antenna Array
-
摘要: 采用多天線發(fā)射方式保障通信信息的安全傳輸是物理層安全通信研究領(lǐng)域中常采用的手段之一，但這種方式會導致發(fā)射信號高峰均功率比的缺點，從而影響合法用戶的通信性能。該文從多天線發(fā)射的加權(quán)系數(shù)出發(fā)，定義了基于多天線發(fā)射方式的物理層安全通信信號峰均功率比(PAPR)概念，并且針對隨機天線陣物理層安全通信系統(tǒng)提出一種基于部分傳輸序列的物理層安全通信信號PAPR抑制算法。仿真結(jié)果表明該文提出的PAPR抑制算法能在不降低發(fā)射信號安全性能的條件下有效地降低發(fā)射信號的PAPR值。Abstract: Using multiple transmit antennas to guarantee the information security is one of the common methods in the field of physical layer security communication. However, this method leads to the transmit signal with the drawback of high Peak-to-Average Power Ratio (PAPR), which degrades the communication performance for the desired receiver. In this paper, the PAPR conception for security communication signal based on the weighted antenna array is defined from the point view of weighted value. The degradation performance of the desired receiver is also analyzed. In addition, a PAPR reduction algorithm is proposed for the physical layer security communication system using a random antenna array. Simulation results show that the proposed algorithm reduces the PAPR value for the security communication signal under the condition that the security performance does not reduce.
-
計量
- 文章訪問數(shù): 2160
- HTML全文瀏覽量: 180
- PDF下載量: 551
- 被引次數(shù): 0
下載:
