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提出了一种正交频分复用(OFDM)系统的多服务多用户资源分配算法。与传统多用户OFDM系统资源分配算法只考虑一种类型的服务不同,提出的算法同时考虑了数据业务和语音业务,分析了两种业务不同的资源分配需求,对语音业务采用了时分多址(TDMA)的方式,并且加入了对每种数据业务最低传输速率的要求。仿真结果表明,新算法能够在满足语音用户固定传输容量的基础上,提升数据用户总的传输容量,同时保证每一个数据用户的最低传输容量的要求。
A multi-service and multi-user resource allocation algorithm for orthogonal frequency division multiplexing (OFDM) system is proposed. Compared with the traditional multi-user OFDM system resource allocation algorithm that considers only one type of service, the proposed algorithm takes both data and voice services into consideration, analyzes the different resource allocation requirements of the two services, and uses time division multiple access TDMA) approach, and joined the minimum transmission rate for each data service requirements. The simulation results show that the new algorithm can increase the total transmission capacity of data users while meeting the fixed transmission capacity of voice users and ensure the minimum transmission capacity of each data user.