TY - JOUR
T1 - Layered coding for interference channels with partial transmitter side information
AU - Thejaswi, P. S Chandrashekhar
AU - Bennatan, Amir
AU - Zhang, Junshan
AU - Calderbank, A. Robert
AU - Cochran, Douglas
N1 - Funding Information:
Manuscript received April 30, 2010; revised September 30, 2010; accepted January 13, 2011. Date of current version April 20, 2011. This work was supported in part by the AFOSR Grant FA9550-10-1-0464 and in part by DoD MURI Project FA9550-09-1-0643.
PY - 2011/5
Y1 - 2011/5
N2 - A two-user interference channel is considered where each transmitter has access to a part of the information intended to the other destination. A primary objective is to maximize the information rates, by exploring the cooperation between the transmitters for interference mitigation, based on the partial side information. It is clear that full cooperation between the transmitters is not possible since each transmitter has only a part of the side information. With this insight, several "layered coding" schemes, consisting of binning and superposition at different stages, are developed. These schemes are are carefully built on coding strategies for the classical interference channel and node cooperation mechanisms. In particular, two layered coding schemes, which are based on a combination of MIMO broadcast coding and the HanKobayashi (HK) coding, are thoroughly studied : The first one, namely layered coding with binning, makes heavy use of the GelfandPinsker binning and the HK coding and the second one, namely layered superposition coding, involves superposition coding over different tiers. Rate regions corresponding to the proposed schemes are derived. Then the application of these coding schemes are illustrated for the Gaussian case and numerical results corroborate that the proposed layered coding schemes yield substantial gains at high SNR.
AB - A two-user interference channel is considered where each transmitter has access to a part of the information intended to the other destination. A primary objective is to maximize the information rates, by exploring the cooperation between the transmitters for interference mitigation, based on the partial side information. It is clear that full cooperation between the transmitters is not possible since each transmitter has only a part of the side information. With this insight, several "layered coding" schemes, consisting of binning and superposition at different stages, are developed. These schemes are are carefully built on coding strategies for the classical interference channel and node cooperation mechanisms. In particular, two layered coding schemes, which are based on a combination of MIMO broadcast coding and the HanKobayashi (HK) coding, are thoroughly studied : The first one, namely layered coding with binning, makes heavy use of the GelfandPinsker binning and the HK coding and the second one, namely layered superposition coding, involves superposition coding over different tiers. Rate regions corresponding to the proposed schemes are derived. Then the application of these coding schemes are illustrated for the Gaussian case and numerical results corroborate that the proposed layered coding schemes yield substantial gains at high SNR.
KW - Beamforming
KW - binning
KW - dirty paper coding
KW - distributed MIMO
KW - interference channels
KW - side information
KW - superposition coding
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U2 - 10.1109/TIT.2011.2119670
DO - 10.1109/TIT.2011.2119670
M3 - Article
AN - SCOPUS:79955510300
SN - 0018-9448
VL - 57
SP - 2765
EP - 2780
JO - IEEE Transactions on Information Theory
JF - IEEE Transactions on Information Theory
IS - 5
M1 - 5752456
ER -