浏览全部资源
扫码关注微信
1. 宁波大学通信技术研究所 宁波 315211
2. 浙江万里学院电子信息学院 宁波 315100
[ "吴耀辉,男,宁波大学博士生,浙江万里学院讲师,主要研究方向为OFDM 系统资源分配。" ]
[ "李有明,男,宁波大学通信技术研究所博士生导师、教授,主要研究方向为无线和有线宽带通信技术中的干扰抑制、动态资源分配、MIMO-OFDM、协作中继、认知无线电等。" ]
[ "邵鹏飞,男,浙江万里学院副教授,主要研究方向通信网络技术。" ]
网络出版日期:2014-06,
纸质出版日期:2014-06-20
移动端阅览
吴耀辉, 李有明, 邵鹏飞. 一种新型的OFDMA比例公平资源分配算法[J]. 电信科学, 2014,30(6):79-85.
Yaohui Wu, Youming Li, Pengfei Shao. A Novel Resource Allocation Algorithm for OFDMA System with Proportional Fairness[J]. Telecommunications science, 2014, 30(6): 79-85.
吴耀辉, 李有明, 邵鹏飞. 一种新型的OFDMA比例公平资源分配算法[J]. 电信科学, 2014,30(6):79-85. DOI: 10.3969/j.issn.1000-0801.2014.06.012.
Yaohui Wu, Youming Li, Pengfei Shao. A Novel Resource Allocation Algorithm for OFDMA System with Proportional Fairness[J]. Telecommunications science, 2014, 30(6): 79-85. DOI: 10.3969/j.issn.1000-0801.2014.06.012.
针对已有算法对系统容量和高公平性兼顾较差的情况,提出了一种满足公平性的系统容量最大化资源分配算法。在子载波分配中通过建立信道效率控制模型,给当前用户分配信道效率最高的子载波,将信道增益低于门限值的子载波重新分配,改进了最大化最小(max-min)用户速率模型。在功率分配中将系统模型转化成用注水线表示的数学模型,首先求解各用户的注水线,再求解各用户的功率分配,保证了用户间比例公平性。两种信噪比情形下的仿真和分析表明,整个方案计算复杂度稍低,系统容量获得较大提升,并且用户间的公平性始终为1。
Existing algorithms couldn't balance system capacity and high fairness well
so a multi-user rate adaptive allocation algorithm was proposed to maximize the capacity of OFDMA system under proportional fairness.Improved maximize the minimum(max-min)user rate model was proposed
the current user was allocated the highest efficiency subcarrier according to the channel efficiency control parameter.If some allocated subcarrier's channel gain was lower than the threshold value
which would be reallocated to another user whose channel gain was highest.Power allocation model was converted into expression of water-filling line; every user's power allocation was resolved according to the resolved water-filling line.Simulation results and analysis show that the proposed scheme can achieve higher capacity and perfect fairness in a variety of SNR cases
while requiring slightly less computation.
Zhu H L , STAJANO F . Radio resource allocation for OFDMA systems in high speed environments . IEEE Journal on Selected Areas Communications , 2012 , 30 ( 4 ): 748 ~ 759
Jang J , Lee K B . Transmit power adaptation for multiuser OFDM systems . IEEE Journal on Selected Areas Communications , 2003 , 21 ( 3 ): 171 ~ 178
Rhee W , Cioffi J M . Increasing in capacity of multiuser OFDM system using dynamic subchannel allocation . Proceedings of IEEE International Vehicular Technology Conference , Tokyo,Japan , 2000 : 1085 ~ 1089
Shen Z K , Andrews J G , Evans B L . Adaptive resource allocation in multiuser OFDM systems with proportional rate constraints . IEEE Transactions on Wireless Communications , 2005 , 4 ( 6 ): 2726 ~ 2737
Wong I C , Evans B L . Optimal downlink OFDMA subcarrier,rate,and power allocation with linear complexity to maximize ergodic weighted-sum rates . Proceedings of Global Telecommunications Conference , Washington,USA , 2007 : 1683 ~ 1686
杜娜 , 顾品标 , 闵锐 . 一种低复杂度基于公平性的MIMO-OFDMA资源分配方案 . 电子与信息学报 , 2010 , 32 ( 4 ): 770 ~ 774
Odhah N A , Dessouky M I , Al-Hanafy W E . Greedy power allocation algorithm for proportional resource allocation in multi-user OFDM systems . Proceedings of the 29th National Radio Science Conference , Cairo,Egypt , 2012 : 421 ~ 428
Ren Z Y , Chen S Z , Hu B . Proportional resource allocation with subcarrier grouping in OFDM wireless systems . IEEE Communications Letters , 2013 , 17 ( 5 ): 856 ~ 871
王丽萍 , 孙国防 , 程永明 . 鱼群算法在多用户OFDM跨层资源分配中的应用 . 电路与系统学报 , 2011 , 16 ( 3 ): 87 ~ 91
汪照 , 李有明 , 陈斌 . 基于鱼群算法的OFDMA 自适应资源分配 . 物理学报 , 2013 , 62 ( 12 )
张春发 , 赵晓晖 . 基于公平度门限的多用户OFDM系统自适应资源分配算法 . 通信学报 , 2011 , 32 ( 12 ): 65 ~ 71
Rodrigues E B , Casadevall F . Rate adaptive resource allocation with fairness control for OFDMA networks . Proceedings of the 18th European Wireless Conference , Poznan,Poland , 2012
Yu W , Cioffi J M . FDMA capacity of Gaussian multiple-access channels with ISI . IEEE Transactions on Communications , 2002 , 50 ( 1 ): 102 ~ 111
Chung S T , Goldsmith A J . Degrees of freedom in adaptive modulation:a unified view . IEEE Transactions on Communications , 2001 , 49 ( 9 ): 1561 ~ 1571
Jain R , Chiu D , Hawe W . A quantitative measure of fairness and discrimination for resource allocation in shared computer systems . DEC Research Tech Rep,TR-301 , 1984
0
浏览量
810
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构