TY - GEN
T1 - Outage optimal relay selection strategy using destination-based jamming for secure communication in amplify-and-forward relay networks
AU - Ghose, Sarbani
AU - Bose, Ranjan
PY - 2014
Y1 - 2014
N2 - In this paper, we consider a two-hop wireless system consisting of one source, one destination, one eavesdropper and multiple amplify-and-forward relays. A time-division duplex scheme is proposed that aims at minimizing the secrecy rate outage by selecting an optimal relay from the set of candidate relays. In the first time slot, the source transmits the information bearing signal, meanwhile the destination jams the eavesdropper. In the second slot, the selected relay forwards the received signals in amplify-and-forward fashion. Out of two hops, the eavesdropper can tap only the signal transmitted by the relay in the second hop. We obtain a closed-form expression of the end-to-end secrecy outage for instantaneous and statistical channel-state information of the eavesdropper. The analytical results suggest that the proposed destination-based jamming outperforms the conventional relay selection scheme without jamming. Monte Carlo simulations are performed to verify the analytical results.
AB - In this paper, we consider a two-hop wireless system consisting of one source, one destination, one eavesdropper and multiple amplify-and-forward relays. A time-division duplex scheme is proposed that aims at minimizing the secrecy rate outage by selecting an optimal relay from the set of candidate relays. In the first time slot, the source transmits the information bearing signal, meanwhile the destination jams the eavesdropper. In the second slot, the selected relay forwards the received signals in amplify-and-forward fashion. Out of two hops, the eavesdropper can tap only the signal transmitted by the relay in the second hop. We obtain a closed-form expression of the end-to-end secrecy outage for instantaneous and statistical channel-state information of the eavesdropper. The analytical results suggest that the proposed destination-based jamming outperforms the conventional relay selection scheme without jamming. Monte Carlo simulations are performed to verify the analytical results.
KW - amplify-and-forward relay
KW - cooperative jamming
KW - relay networks
KW - relay selection
KW - Secrecy outage
UR - http://www.scopus.com/inward/record.url?scp=84907407301&partnerID=8YFLogxK
U2 - 10.1109/SSP.2014.6884661
DO - 10.1109/SSP.2014.6884661
M3 - Conference contribution
AN - SCOPUS:84907407301
SN - 9781479949755
T3 - IEEE Workshop on Statistical Signal Processing Proceedings
SP - 404
EP - 407
BT - 2014 IEEE Workshop on Statistical Signal Processing, SSP 2014
PB - IEEE Computer Society
T2 - 2014 IEEE Workshop on Statistical Signal Processing, SSP 2014
Y2 - 29 June 2014 through 2 July 2014
ER -