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OFDM中基于信道变化载波分配算法

A Fair Subcarrier Allocation Algorithm for Multiuser OFDM System based on Channel Variance
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摘要 OFDM系统利用用户的多样性,根据信道状态对系统中的子载波资源进行动态的分配,有效的提高了系统的容量。最大化系统容量的子载波分配算法,忽略了用户之间的公平性。使某些信道状态不好的用户由于没有被分配子载波,不能进行数据的传送。针对这一问题提出一种新的子载波的分配方法,在有效保证系统容量的前提下,通过确保每个用户分配到的子载波数目,兼顾了用户之间资源分配的公平性。 Inamultiuser OFDM system,the performance can be improved by exploiting the multiuser diversity with the method of dynamic resource allocation.However,some subcarrier allocation algorithms give no emphasis on the fairness among users.This paper proposes a new method for fairsubcarrier allocation while for guaranteeing the system capacity.
机构地区 大连理工大学
出处 《通信技术》 2011年第3期29-31,119,共4页 Communications Technology
关键词 OFDM 子载波分配 系统容量 公平性 OFDM subcarrier allocation system capacity fairness
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参考文献10

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