Journal of Systems Engineering and Electronics ›› 2010, Vol. 21 ›› Issue (1): 154-160.doi: 10.3969/j.issn.1004-4132.2010.01.025

• COMPUTER DEVELOPMENT AND PRACTICE • Previous Articles     Next Articles

Confidentiality-aware message scheduling for security-critical wireless networks

Wei Jiang∗, Guangze Xiong, Xuyang Ding, Zhengwei Chang, and Nan Sang   

  1. College of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
  • Online:2010-02-26 Published:2010-01-03
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (60673142) and the National High Technology Research and Development Progrm of China (863 Program) (2006AA01Z173; 2007AA01Z131).


Without considering security, existing message scheduling mechanisms may expose critical messages to malicious threats like confidentiality attacks. Incorporating confidentiality improvement into message scheduling, this paper investigates the problem of scheduling aperiodc messages with time-critical and security-critical requirements. A risk-based security profit model is built to quantify the security quality of messages; and a dynamic programming based approximation algorithm is proposed to schedule aperiodic messages with guaranteed security performance. Experimental results illustrate the efficiency and effectiveness of the proposed algorithm.