摘要
采用OFDM技术的无线接口是新一代移动通信系统的候选方案之一,然而OFDM技术的特点也给面向多媒体应用并采用全IP网络结构的未来移动通信系统带来了新的问题。在探讨了OFDM无线链路的特性及其对于调度机制的影响之后,分析了PF、ODRR、MRR和MaximumC/I等主流无线调度机制与OFDM技术相结合的性能特点并指出不足之处,最后展望了基于OFDM的无线分组调度机制的发展趋势。
The air interface based on OFDM technology is a candidate in the future mobile communication system. However, the characteristic of wireless OFDM brings new problems to the future all-IP mobile communication system which is multimedia application oriented. After discussing the characteristics of wireless channels in OFDM systems and their influence on the design of packet scheduling algorithms, tiffs paper analyzes technology attributes and shortcomings of recent wireless scheduling algorithms （PF,ODRR,MRR. and Maximum C/I, etc.） combined with OFDM technology, At last, the paper prospects future trends of wireless packet scheduling algorithms in OFDM systems.
出处
《现代电信科技》
2006年第1期38-42,共5页
Modern Science & Technology of Telecommunications
