TY - GEN
T1 - DMT achieving schemes for the isotropic fading vector broadcast channel
AU - Mroueht, Lina
AU - Rouquette-Léveil, Stéphanie
AU - Othman, Ghaya Rekaya Ben
AU - Belfiore, Jean Claude
PY - 2008/12/1
Y1 - 2008/12/1
N2 - In this paper, we consider the isotropic fading broadcast channel. This channel refers to the case when no directional information is available at the transmitter side, and was studied by Jafar et al in [1]. It was shown that the isotropic vector broadcast channel (BC-V) can be reduced to an equivalent scalar broadcast channel (BC-S). It is well known from [2] http://www.pimrc2008.org/ that BC-S is degraded in the same order as the channel magnitude. This implies that the optimal strategy that maximizes the sum capacity for BC-S and BC-V consists on allocating the whole power to the strongest user. Based on these results, we derive in this paper the Diversity Multiplexing Tradeoff (DMT) of the isotropic fading BC-S and BC-V, and we propose optimal schemes that achieve these DMT.
AB - In this paper, we consider the isotropic fading broadcast channel. This channel refers to the case when no directional information is available at the transmitter side, and was studied by Jafar et al in [1]. It was shown that the isotropic vector broadcast channel (BC-V) can be reduced to an equivalent scalar broadcast channel (BC-S). It is well known from [2] http://www.pimrc2008.org/ that BC-S is degraded in the same order as the channel magnitude. This implies that the optimal strategy that maximizes the sum capacity for BC-S and BC-V consists on allocating the whole power to the strongest user. Based on these results, we derive in this paper the Diversity Multiplexing Tradeoff (DMT) of the isotropic fading BC-S and BC-V, and we propose optimal schemes that achieve these DMT.
UR - https://www.scopus.com/pages/publications/69949169547
U2 - 10.1109/PIMRC.2008.4699642
DO - 10.1109/PIMRC.2008.4699642
M3 - Conference contribution
AN - SCOPUS:69949169547
SN - 9781424426447
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
BT - 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
T2 - 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
Y2 - 15 September 2008 through 18 September 2008
ER -