|Autors: Petrov, N., Poulkov, V. K., Iliev, G. L.|
Title: Reduced Computational Complexity Beamspace Beamforming Design for MIMO Multicast Systems
Keywords: Cross-layer design; MIMO; Reduced computational complexity; Transmit beamforming
Abstract: An algorithm with reduced computational complexity for solving the transmit beamforming problem in the case of multiple co-channel multicast groups is considered. A new degree of freedom, which allows a trade-off between the transmission power, the number of antenna array elements and the computational time, is added. The optimization problem is transformed to a lower-dimensional optimization problem, which allows an antenna array with higher number of elements to operate with significant decrease in transmission power, while the increase in computational time is minor. The trade-off between the delay and the transmit power appears to be a promising direction for a crosslayer optimization research.
1. Senaratne, D., Tellambura, C., "Beamforming for physical layer multicasting", 2011 IEEE Wireless Communications and Networking Conference, WCNC 2011, pp. 1776-1781, 2011, DOI: 10.1109/WCNC.2011.5779431. - 2011 - в издания, индексирани в Scopus или Web of Science
Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Scopus