关键词: 多媒体广播组播业务, 频域调度, 吞吐量与覆盖的折中, G因子

Abstract:

For the radio resource management (RRM) of single-cell multimedia broadcast/multicast service （MBMS） with feedback, a simple and effective mechanism is proposed, in which users with G-factor lower than a threshold are not taken into account in RRM, to trade considerable throughput gain a small loss in coverage (percentage of users receiving data with block error rate lower than 1%). This mechanism can be combined with frequency domain packet scheduling (FDPS) of MBMS, and its beneficial impact on the scheduling gain is analyzed. Simulation shows that the proposed mechanism and FDPS can boost each other, that will further improve throughput of MBMS. With moderate to larger number of users per cell, 50% throughput gain can be obtained with coverage loss lower than 1%.

Key words: multimedia broadcast/multicast sevice, frequency domain packet scheduling, tradeoff between throughput and coverage, G-factor