Physical Layer Wireless Network Security Through Channel Coding

채널 부호화를 통한 물리계층 무선 네트워크 보안 기술

  • 아싸두자만 (울산대학교 전기전자정보시스템 공학과) ;
  • 공형윤 (울산대학교 전기전자정보시스템 공학과) ;
  • 김건석 (울산대학교 전기전자정보시스템 공학과) ;
  • 김내수 (한국전자통신연구원)
  • Published : 2007.05.11


In this paper we introduce a new paradigm of physical layer security for wireless network. Existing security protocols like internet's transport layer security protocol has some security flaws that skilled hackers could exploit. Motivated from this point we introduce a new security protocol that works in physical layer which is much less vulnerable to hackers than any other higher layers. In our proposal, we incorporate the proposed security protocol within channel coding as channel coding is an essential part of wireless communication. We utilize the flexibility to choose a generator matrix (or generator polynomial) of a particular code that selects the code words as a core of our protocol. Each pair of wireless node will select a unique generator using their security key before they started to communicate with each other.