Multicast Scheduling and Resource Allocation Algorithms for OFDMA-Based Systems: A Survey

被引:173
作者
Afolabi, Richard O. [1 ]
Dadlani, Aresh [1 ]
Kim, Kiseon [1 ]
机构
[1] GIST, Dept Nanobio Mat & Elect, Sch Informat & Commun, Kwangju 500712, South Korea
基金
新加坡国家研究基金会;
关键词
multicasting; resource allocation; multicast survey; scheduling; OFDMA; subcarrier allocation; power allocation; resource optimization; quality of service; multicast standards; BROADCAST SERVICES; COOPERATION; NETWORKS; SUPPORT;
D O I
10.1109/SURV.2012.013012.00074
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Multicasting is emerging as an enabling technology for multimedia transmissions over wireless networks to support several groups of users with flexible quality of service (QoS) requirements. Although multicast has huge potential to push the limits of next generation communication systems; it is however one of the most challenging issues currently being addressed. In this survey, we explain multicast group formation and various forms of group rate determination approaches. We also provide a systematic review of recent channel-aware multicast scheduling and resource allocation (MSRA) techniques proposed for downlink multicast services in OFDMA based systems. We study these enabling algorithms, evaluate their core characteristics, limitations and classify them using multidimensional matrix. We cohesively review the algorithms in terms of their throughput maximization, fairness considerations, performance complexities, multi-antenna support, optimality and simplifying assumptions. We discuss existing standards employing multicasting and further highlight some potential research opportunities in multicast systems.
引用
收藏
页码:240 / 254
页数:15
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