Telecommunications Science ›› 2015, Vol. 31 ›› Issue (2): 69-74.doi: 10.11959/j.issn.1000-0801.2015041

• research and development • Previous Articles     Next Articles

Secure Transmission Based on Antenna Selection for Network Coding System

Dan Deng1,Ming Zhao2,Guizhou Jian3   

  1. 1 School of Information Engineering, Guangzhou Panyu Polytechnic, Guangzhou 511483, China
    2 School of Information Science and Technology, University of Science and Technology of China, Hefei 230027, China
    3 Beijing Microelectronic Technology Research Institute, Beijing 100076, China
  • Online:2015-02-20 Published:2017-03-18
  • Supported by:
    The National Natural Science Foundation of China;National High Technology Research and Development Program of China(863 Program)

Abstract:

In order to improve the secrecy capacity of analog network coding system, antenna selection based transmission scheme was investigated. The selection criteria for the source nodes and relay nodes were proposed over a slowly varying channel. The optimal selection criterion for maximum secrecy capacity and the suboptimal selection criterion for maximum channel gain ware investigated. Simulation results show that the selection scheme of combined main channel capacity maximum(CMCCM)outperforms other schemes with the most computation burden. Compared with the fixed selection, the proposed scheme shows about 5 dB gain in ergodic secrecy capacity. Specifically, the independent channel gain maximum(ICGM)scheme holds the similar performance compared with CMCCM scheme, while ICGM scheme can release the computation burden.

Key words: antenna selection, physical-layer security, analog network coding, secrecy capacity

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