多用户OFDMA系统中高效动态信道分配的主动子信道分配算法

2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2006-12-11 DOI:10.1109/PIMRC.2006.253975

SangJun Ko, Joo Heo, K. Chang

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引用次数: 14

摘要

本文解决了OFDMA无线系统中多用户通信的智能子信道分配问题。提出了一种主动子信道分配(ASA)算法，它是一种有条件地考虑所有用户信道状态信息的智能动态信道分配算法，以实现OFDMA系统吞吐量的最大化。将ASA算法与两层小区环境下的round-robin、PF (proportional fair)和ACG (amplitude greedy)算法进行了比较，并通过计算机仿真分析了各算法在下行OFDMA系统中的性能。仿真结果表明，与轮循、PF和ACG算法相比，ASA算法的环吞吐量分别提高了24%、16%和14%

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Aggressive Subchannel Allocation Algorithm for Efficient Dynamic Channel Allocation in Multi-User OFDMA System

This paper solves the problem of finding an intelligent subchannel allocation method to communicate with multiple users in OFDMA wireless systems. We propose an ASA (aggressive sub-channel allocation) algorithm, which is an intelligent dynamic channel allocation algorithm considering all users' channel state information conditionally to maximize throughput in an OFDMA system. We compare the ASA algorithm with round-robin, PF (proportional fair) and ACG (amplitude craving greedy) in the 2-tier cell environment and then analyze the performance of each algorithm through computer simulation in downlink OFDMA system. Simulation results show that the proposed ASA algorithm gets 24 %, 16 % and 14 % better ring throughput compared with the round-robin, PF and ACG, respectively

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2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications

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