TY - GEN
T1 - Three-user MIMO MACs with cooperation
AU - Wigger, Michéle A.
AU - Kramer, Gerhard
PY - 2009/12/1
Y1 - 2009/12/1
N2 - We study the three-user multi-antenna Gaussian multiple-access channel (MAC) where prior to the transmission over the MAC the transmitters can communicate with each other over noise-free broadcast pipes of given capacities.We present the capacity region of this channel. Additionally, we also study the three-user multi-antenna Gaussian MAC with common messages and present its capacity region. The main step in deriving these two capacity results consists in proving that Gaussian distributions maximize certain mutual information expressions under multiple Markov constraints. Towards this end, a tool previously used in [3], [6], [7] is extended to the vector case and to multiple Markov conditions.
AB - We study the three-user multi-antenna Gaussian multiple-access channel (MAC) where prior to the transmission over the MAC the transmitters can communicate with each other over noise-free broadcast pipes of given capacities.We present the capacity region of this channel. Additionally, we also study the three-user multi-antenna Gaussian MAC with common messages and present its capacity region. The main step in deriving these two capacity results consists in proving that Gaussian distributions maximize certain mutual information expressions under multiple Markov constraints. Towards this end, a tool previously used in [3], [6], [7] is extended to the vector case and to multiple Markov conditions.
UR - https://www.scopus.com/pages/publications/77950683119
U2 - 10.1109/ITWNIT.2009.5158575
DO - 10.1109/ITWNIT.2009.5158575
M3 - Conference contribution
AN - SCOPUS:77950683119
SN - 9781424445363
T3 - Proceedings - 2009 IEEE Information Theory Workshop on Networking and Information Theory, ITW 2009
SP - 221
EP - 225
BT - Proceedings - 2009 IEEE Information Theory Workshop on Networking and Information Theory, ITW 2009
T2 - 2009 IEEE Information Theory Workshop on Networking and Information Theory, ITW 2009
Y2 - 10 June 2009 through 12 June 2009
ER -