电讯技术2017，Vol.57Issue(2)：161-166,6.DOI:10.3969/j.issn.1001-893x.2017.02.007
基于改进智能水滴算法的多用户OFDMA系统资源分配
Resource Allocation with Improved Intelligent Water Drops Algorithm in Multi-user OFDMA System
摘要
Abstract
Reasonable resource allocation for orthogonal frequency division multiple access( OFDMA) sys―tems plays an important role in enhancing system performance. For a multi-user OFDMA system,the re―source allocation algorithm with maximizing system capacity as target is researched deeply. And then,a re―source allocation model of undirected full connection graph on intelligent drops algorithm is proposed,and the matching relationship can be expressed through vertices and edges sets of undirected full connection graph. Finally,the intelligent water drops algorithm is further improved. The simulation results indicate that under the condition of meeting user proportion fairness,compared with ant colony algorithm,the pro―posed full connection graph resource allocation scheme based on improved intelligent water drops algorithm can increase system rate of 2. 17% ~4. 91%. At the same time,it is in possession of faster convergence speed and enhances system performance.关键词
正交频分多址/多用户/子载波分配/智能水滴算法/比例公平性Key words
orthogonal frequency division multiple access( OFDMA)/multi-user/subcarrier allocation/in―telligent water drops algorithm/proportional fairness分类
信息技术与安全科学引用本文复制引用
刘紫燕,毛攀,吴俊熊,冯丽..基于改进智能水滴算法的多用户OFDMA系统资源分配[J].电讯技术,2017,57(2):161-166,6.基金项目
国家自然科学基金资助项目(61263005) （61263005）
