Research Article
Securing Cooperative Transmission in Wireless Communications
@INPROCEEDINGS{10.1109/MOBIQ.2007.4451071, author={Zhu Han and Yan Lindsay Sun}, title={Securing Cooperative Transmission in Wireless Communications}, proceedings={1st International ICST Workshop on the Security and Privacy of Emerging Ubiquitous Communication Systems}, publisher={IEEE}, proceedings_a={SPEUCS}, year={2008}, month={2}, keywords={Analytical models Bit error rate Broadcasting Channel capacity Channel estimation Communication system security Information security Relays Wireless communication Wireless networks}, doi={10.1109/MOBIQ.2007.4451071} }- Zhu Han
Yan Lindsay Sun
Year: 2008
Securing Cooperative Transmission in Wireless Communications
SPEUCS
IEEE
DOI: 10.1109/MOBIQ.2007.4451071
Abstract
Cooperative transmission is an emerging communication technique that takes advantages of spatial diversity and broadcast natures of wireless channels to improve wireless channel capacity. However, cooperative transmission can be vulnerable to malicious attacks, especially in its current design. In this paper, we examine whether the cooperative transmission still have performance advantages when we consider the security issues. In particular, we identify various attacks against cooperative transmission, analyze the vulnerabilities of current schemes, design a trust-assisted cooperative transmission scheme, and evaluate the proposed scheme through analysis and simulations. The proposed scheme can fix the security problems and maintain the performance advantage. It performs much better than the traditional scheme when there are malicious/greedy relays or severe channel estimation errors. In addition, we investigate the advantage of cooperative transmission in terms of defending bad mouth attacks. A recovery of link bit error rate is observed.