摘要
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 resource allocation algorithm for multiservice multiuser OFDM system is proposed in this paper.Different from the traditional resource allocation algorithms for multi-user OFDM,which considers only the data user or voice user,the proposed algorithm takes into account both data service and voice service.TDMA is used for the voice user,and minimum transmission capacity is added for the data user.The simulation result shows that the proposed algorithm could satisfy the fixed transmission capacity of every voice user and promote the overall transmission capacity of the data user while guaranteeing the minimum transmission capacity of every data user.
出处
《通信技术》
2010年第11期18-20,共3页
Communications Technology
