TY - GEN
T1 - Space-time MIMO multicasting
AU - Livni, Idan
AU - Khina, Anatoly
AU - Hitron, Ayal
AU - Erez, Uri
PY - 2012
Y1 - 2012
N2 - Multicasting is the general method of conveying the same information to multiple users over a broadcast channel. In this work, the Gaussian MIMO broadcast channel is considered, with multiple users and any number of antennas at each node. A "closed loop" scenario is assumed, for which a practical capacity-achieving multicast scheme is constructed. In the proposed scheme, linear modulation is carried over time and space together, which allows to transform the problem into that of transmission over parallel scalar sub-channels, the gains of which are equal, except for a fraction of sub-channels that vanishes with the number of time slots used. Over these sub-channels, off-the-shelf fixed-rate AWGN codes can be used to approach capacity.
AB - Multicasting is the general method of conveying the same information to multiple users over a broadcast channel. In this work, the Gaussian MIMO broadcast channel is considered, with multiple users and any number of antennas at each node. A "closed loop" scenario is assumed, for which a practical capacity-achieving multicast scheme is constructed. In the proposed scheme, linear modulation is carried over time and space together, which allows to transform the problem into that of transmission over parallel scalar sub-channels, the gains of which are equal, except for a fraction of sub-channels that vanishes with the number of time slots used. Over these sub-channels, off-the-shelf fixed-rate AWGN codes can be used to approach capacity.
UR - http://www.scopus.com/inward/record.url?scp=84867570111&partnerID=8YFLogxK
U2 - https://doi.org/10.1109/ISIT.2012.6284041
DO - https://doi.org/10.1109/ISIT.2012.6284041
M3 - منشور من مؤتمر
SN - 9781467325790
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 2831
EP - 2835
BT - 2012 IEEE International Symposium on Information Theory Proceedings, ISIT 2012
T2 - 2012 IEEE International Symposium on Information Theory, ISIT 2012
Y2 - 1 July 2012 through 6 July 2012
ER -