TY - GEN
T1 - An outer bound for the Gaussian interference channel with a relay
AU - Marić, Ivana
AU - Dabora, Ron
AU - Goldsmith, Andrea J.
PY - 2009/12/7
Y1 - 2009/12/7
N2 - A novel sum-rate outer bound for the Gaussian interference channel with a relay is presented. The outer bound is obtained by adapting the genie-aided approach developed for interference channels in [1]. The cut-set bound for this channel is also derived and is shown to be much looser than the new bound. The new bound is also compared to an achievable rate region we introduced in previous work. We show that the inner and outer bounds are close in the regime of strong interference where receivers can decode both messages. The capacity region in strong interference for the discrete memoryless degraded channel is also presented.
AB - A novel sum-rate outer bound for the Gaussian interference channel with a relay is presented. The outer bound is obtained by adapting the genie-aided approach developed for interference channels in [1]. The cut-set bound for this channel is also derived and is shown to be much looser than the new bound. The new bound is also compared to an achievable rate region we introduced in previous work. We show that the inner and outer bounds are close in the regime of strong interference where receivers can decode both messages. The capacity region in strong interference for the discrete memoryless degraded channel is also presented.
UR - http://www.scopus.com/inward/record.url?scp=76249114609&partnerID=8YFLogxK
U2 - 10.1109/ITW.2009.5351371
DO - 10.1109/ITW.2009.5351371
M3 - Conference contribution
AN - SCOPUS:76249114609
SN - 9781424449835
T3 - 2009 IEEE Information Theory Workshop, ITW 2009
SP - 569
EP - 573
BT - 2009 IEEE Information Theory Workshop, ITW 2009
T2 - 2009 IEEE Information Theory Workshop, ITW 2009
Y2 - 11 October 2009 through 16 October 2009
ER -