On Transmit-Diversity Based Multicast in Mobile Wireless Networks Conference Paper uri icon


  • We investigate the variations of using the different transmit-diversity techniques for multicast in mobile wireless networks. In particular, we propose and study two different schemes using transmit-diversity for mobile multicast. First, we propose the antenna-beamforming-based mobile multicast scheme which derives the transmit antenna weights by formulating/solving an optimization problem to minimize the average Symbol Error Rate (SER) over all multicast receivers. The simulations results show that our proposed beamforming-based scheme achieves lower SER compared with the existing beamforming-based mobile multicast algorithms which either maximize the instantaneous combined Signal to Noise Ratio (SNR) averaged over all receivers, or maximize the worst-case instantaneous combined SNR among all multicast receivers. Second, we apply the antenna-selection scheme in mobile multicasting to achieve the low average SER. We identify that the antenna-selection scheme is suitable for the scenario where different receivers/receiver-groups in a multicast session, experiencing different channel qualities, need to receive different error-control data. The analyses and numerical results show that the proposed scheme improves the SER performance through selecting antennas with better channel qualities and can flexibly support various antenna configurations. 2006 IEEE.

name of conference

  • 2006 IEEE International Conference on Communications

published proceedings


author list (cited authors)

  • Du, Q., Zhang, X. i., & Shen, X. S.

citation count

  • 5

complete list of authors

  • Du, Qinghe||Zhang, Xi||Shen, Xuemin Sherman

publication date

  • June 2006