Title :
Jammer selection for secure two-way DF relay communications with imperfect CSI
Author :
Jiajia Wang ; Jingchao Chen ; Hexiang Duan ; Hongbo Ba ; Jianjun Wu
Author_Institution :
Instn. of Adv. Commun., Peking Univ., Beijing, China
Abstract :
This paper investigates jammer selection in a two-way decode-and-forward (DF) relay network with imperfect channel state information (CSI). The proposed scheme enables an selection of one conventional relay and two jamming nodes to enhance communication security against eavesdropper. The conventional relay assists two sources to exchange their data via a DF protocol. The two jamming nodes are used to create interference signals to confuse the eavesdropper. Furthermore, the asymptotic performance of proposed scheme is analyzed in detail. Under the assumption that the relay can decode received signals perfectly and when the jamming power is higher than that of source nodes, we find that the proposed scheme has a high secrecy performance which is almost independent of the position of the eavesdropper.
Keywords :
decode and forward communication; protocols; relay networks (telecommunication); telecommunication security; CSI; channel state information; communication security; decode-and-forward protocol; jammer selection; jamming nodes; secure two-way decode-and-forward relay communications; source nodes; Educational institutions; Jamming; Peer-to-peer computing; Relays; Security; Signal to noise ratio; Wireless communication; DF relay; Jammer selection; imperfect CSI; physical layer security; two-way;
Conference_Titel :
Advanced Communication Technology (ICACT), 2014 16th International Conference on
Conference_Location :
Pyeongchang
Print_ISBN :
978-89-968650-2-5
DOI :
10.1109/ICACT.2014.6778969
