关键词: 增强型-多媒体广播组播业务, 终端能耗节省;资源分配, 时-频单位

Abstract:

With characteristic of enhanced multimedia broadcast/multicast service (E-MBMS) networks, a time-frequency two dimensions (2-D) resource allocation strategy based on power-saving is proposed. In time domain, the proposed algorithm minimizing power consumption merges different E-MBMS sessions and minimizes the total number of receiving time-slots. Allocation in frequency domain is aimed at maximizing system throughput under the condition in which the target rates can be attained. The proposed scheduling algorithm is done in each orthogonal frequency division multiplexing (OFDM）frame, it allocates time-frequency units to different sessions. Simulation shows that the efficiency of proposed allocation algorithm can obviously reduce power consumption of MBMS handsets and will be with significant higher fairness with throughput being close to the upper bound of optimum method.

Key words: enhanced multimedia broadcast/multicast service, handset power-saving, resource allocation, time-frequency unit