| 多小区OFDMA系统基于改进PSA的资源分配算法 |
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| 引用本文： | 赵清利,纪纯妹.多小区OFDMA系统基于改进PSA的资源分配算法[J].电讯技术,2011,51(7):133-137. |
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| 作者姓名： | 赵清利 纪纯妹 |
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| 作者单位： | 华南理工大学电子与信息学院,广州,510640 |
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| 摘 要： | 针对载波、功率资源分配问题,考虑本小区对其它小区的干扰情况,提出了一种应用于多小区正交频分多址复用(OFDMA)系统中的改进罚函数模拟退火(PSA)算法.该问题模型是在传输速率和性能一定的条件下,最小化传输功率.该算法是一种随机寻优算法,是一种能将局部搜索扩展为全局搜索的启发式算法.仿真结果表明,改进算法简化了问题模型...
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| 关 键 词： | 多小区OFDMA系统 资源分配 罚函数 模拟退火 离散功率 |
An Improved Penalty-SA Based Resouce Allocation Algorithm for OFDMA Cellular Systems |
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| ZHAO Qing-li and JI Chun-mei.An Improved Penalty-SA Based Resouce Allocation Algorithm for OFDMA Cellular Systems[J].Telecommunication Engineering,2011,51(7):133-137. |
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| Authors: | ZHAO Qing-li and JI Chun-mei |
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| Affiliation: | School of Electronic and Information Engineering, South China University of T
echnology,Guangzhou 510640,China;School of Electronic and Information Engineering, South China University of T
echnology,Guangzhou 510640,China |
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| Abstract: | In consideration of the interference from other cells,an improved penalty simula
ted an
nealing(PSA) algorithm used in multi-cell OFDMA systems is proposed for carrier
and
power allocation. The question model is to minimize transmitted power subject t
o transmitted rate and performance. This stochastic optimizing algorithm is an h
euristic algorithm which expands local search into global search. Experimental r
esults show that the improved algorithm can decrease the complexity of the mode
l and operation time without affecting system performance. Though the value of d
iscrete power based on simulated annealing algorithm is random, the whole regula
rity is ob
vious with high throughput per unit power. |
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| Keywords: | OFDMA cellular system resource allocation penalty function simulated annealin
g discrete power |
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