TY - GEN
T1 - Relaying simultaneous multicast messages
AU - Gündüz, D.
AU - Simeone, O.
AU - Goldsmith, A.
AU - Poor, H. Vincent
AU - Shamai, S.
PY - 2009
Y1 - 2009
N2 - The problem of multicasting multiple messages with the help of a relay, which may also have an independent message of its own to multicast, is considered. As a first step to address this general model, referred to as the compound multiple access channel with a relay (cMACr), the capacity region of the multiple access channel with a "cognitive" relay is characterized, including the cases of partial and rate-limited cognition. Achievable rate regions for the cMACr model are then presented based on decode-and-forward (DF) and compress-andforward (CF) relaying strategies. Moreover, an outer bound is derived for the special case in which each transmitter has a direct link to one of the receivers while the connection to the other receiver is enabled only through the relay terminal. Numerical results for the Gaussian channel are also provided.
AB - The problem of multicasting multiple messages with the help of a relay, which may also have an independent message of its own to multicast, is considered. As a first step to address this general model, referred to as the compound multiple access channel with a relay (cMACr), the capacity region of the multiple access channel with a "cognitive" relay is characterized, including the cases of partial and rate-limited cognition. Achievable rate regions for the cMACr model are then presented based on decode-and-forward (DF) and compress-andforward (CF) relaying strategies. Moreover, an outer bound is derived for the special case in which each transmitter has a direct link to one of the receivers while the connection to the other receiver is enabled only through the relay terminal. Numerical results for the Gaussian channel are also provided.
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U2 - 10.1109/ITWNIT.2009.5158539
DO - 10.1109/ITWNIT.2009.5158539
M3 - Conference contribution
AN - SCOPUS:77950652346
SN - 9781424445363
T3 - Proceedings - 2009 IEEE Information Theory Workshop on Networking and Information Theory, ITW 2009
SP - 47
EP - 51
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 -