TY - GEN
T1 - Mutual information jammer-relay games
AU - Wang, Tairan
AU - Giannakis, Georgios B
PY - 2007/8/6
Y1 - 2007/8/6
N2 - We consider a two-person zero-sum mutual information game between one jammer (ℑ) and one relay (R), in a non-fading scenario. Supposing that the source (S) and the destination (D) are unaware of the game, we derive optimal pure or mixed strategies for ℑ and TZ depending on the link qualities and whether the players are active during the S → D channel training. When both ℑ and R have full knowledge of the source signal, the optimal strategies amount to linear jamming (LJ) and linear relaying (LR), respectively. When the S → ℑ and S → R links are noisy, LJ strategies (pure or mixed) are still optimal under LR. In this case, instead of always transmitting with full power as when the S → R link is perfect, R should adjust transmit-power according to its power constraint and the reliability of the source signal it receives.
AB - We consider a two-person zero-sum mutual information game between one jammer (ℑ) and one relay (R), in a non-fading scenario. Supposing that the source (S) and the destination (D) are unaware of the game, we derive optimal pure or mixed strategies for ℑ and TZ depending on the link qualities and whether the players are active during the S → D channel training. When both ℑ and R have full knowledge of the source signal, the optimal strategies amount to linear jamming (LJ) and linear relaying (LR), respectively. When the S → ℑ and S → R links are noisy, LJ strategies (pure or mixed) are still optimal under LR. In this case, instead of always transmitting with full power as when the S → R link is perfect, R should adjust transmit-power according to its power constraint and the reliability of the source signal it receives.
KW - Jammer channel
KW - Mutual information
KW - Nash equilibrium
KW - Relay channel
KW - Two-person zero-sum games
UR - http://www.scopus.com/inward/record.url?scp=34547528795&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34547528795&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2007.366773
DO - 10.1109/ICASSP.2007.366773
M3 - Conference contribution
AN - SCOPUS:34547528795
SN - 1424407281
SN - 9781424407286
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
BT - 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
T2 - 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
Y2 - 15 April 2007 through 20 April 2007
ER -