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[ "章坚武,男,博士后,杭州电子科技大学教授、博士生导师,主要研究方向为无线通信与网络信号处理等。" ]
[ "李方,女,杭州电子科技大学硕士生,主要研究方向为无线资源管理。" ]
[ "许方敏,女,博士,杭州电子科技大学讲师,主要研究方向为宽带无线通信基础理论的研究,包括频率复用、资源调度等无线资源分配与管理策略。" ]
网络出版日期:2015-05,
纸质出版日期:2015-05-20
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章坚武, 李方, 许方敏. 一种提高小区边缘用户性能的多用户子载波功率分配策略[J]. 电信科学, 2015,31(5):95-100.
Jianwu Zhang, Fang Li, Fangmin Xu. A Multiuser Subcarrier and Power Allocation Scheme to Improve the Performance of Cell Edge Users[J]. Telecommunication science, 2015, 31(5): 95-100.
章坚武, 李方, 许方敏. 一种提高小区边缘用户性能的多用户子载波功率分配策略[J]. 电信科学, 2015,31(5):95-100. DOI: 10.11959/j.issn.1000-0801.2015112.
Jianwu Zhang, Fang Li, Fangmin Xu. A Multiuser Subcarrier and Power Allocation Scheme to Improve the Performance of Cell Edge Users[J]. Telecommunication science, 2015, 31(5): 95-100. DOI: 10.11959/j.issn.1000-0801.2015112.
在OFDMA系统中,小区边缘用户由于受到来自相邻小区的同频干扰,通信质量严重下降。有效地抑制小区间干扰,极大地提升无线网络性能尤其是小区边缘用户性能是5G移动通信系统的目标之一。基于速率自适应(RA)准则提出了一种提高小区边缘用户性能的子载波和功率的联合资源分配算法,该算法分为子载波分配和混合功率分配两步,在提高小区边缘用户性能的同时,最大化链路吞吐量。仿真结果表明,小区边缘用户吞吐量增益为25%以上,混合功率分配下的系统吞吐量逼近全部用户使用注水法时的系统吞吐量,并且降低了运算复杂度。
In the OFDMA system,the communication quality of cell edge users decline seriously,due to the same frequency interference from the adjacent cells. To restrain the inter cell interference effectively and greatly enhance the performance of wireless networks especially the performance of cell edge users is one of the goals of 5G mobile communication system. Based on the rate adaptive(RA)criterion,a joint resource allocation algorithm to improve the performance of cell edge users was proposed. The algorithm was separated into two steps with subcarrier and hybrid power allocation respectively. The proposed scheme could maximize link capacity with the consideration of the performance of cell edge users. The simulation results show that the edge user throughput is greatly increased,the throughput of system of mixed power distribution approximation is approximate to the throughput that all users use liner water-filling algorithm. Besides,the proposed scheme reduces the computation complexity.
艾渤 , 王劲涛 , 钟章队 . 宽带无线通信OFDM系统同步技术 . 北京 : 人民邮电出版社 , 2011
Ai B , Wang J T , Zhong Z D . Synchronization Technology in OFDM Broadband Wireless Communication System . Beijing : Posts and Telecom Press , 2011
Jang J , Lee K B . Transmit power adaptation for multiuser OFDM systems . IEEE Journal on Selected Areas in Communications , 2013 , 21 ( 2 ): 171 ~ 178
Liu T , Yang C , Yang L . low-complexity subcarrier-power allocation scheme for frequency-division multiple-access systems . IEEE Transactions on Wireless Communications , 2010 , 9 ( 5 ): 1564 ~ 1570
章坚武 , 金露 , 许晓荣 . 一种兼顾速率公平的多用户子载波功率联合分配算法 . 电信科学 , 2013 , 29 ( 4 ): 57 ~ 61
Zhang J W , Jin L , Xu X R . A multi-user subcarrier power joint allocation algorithm based on rate fairness . Telecommunications Science , 2013 , 29 ( 4 ): 57 ~ 61
叶兰兰 , 李君 , 金宁 . 一种新颖的多用户OFDM资源分配算法 . 中国计量学院学报 , 2012 , 23 ( 4 ): 379 ~ 382
Ye L L , Li J , Jin N . A novel power allocation algorithm in multiuser OFDM systems . Journal of China Jiliang University , 2012 , 23 ( 4 ): 379 ~ 382
Han Z , Ji Z , Liu K J R . Fair multiuser channel allocation for OFDMA networks using nash bargaining solutions and coalitions . IEEE Transactions on Communications , 2005 , 53 ( 8 ): 1366 ~ 1376
Sadr S , Anpalagan A , Raahemifar K . Radio resource allocation algorithms for the downlink of multiuser OFDM communication systems . IEEE Communications Surveys & Tutorials , 2009 , 11 ( 3 ): 92 ~ 106
张冬梅 , 徐友云 , 蔡跃明 . OFDMA系统中线性注水功率分配算法 . 电子与信息学报 , 2007 , 29 ( 6 ): 1286 ~ 1289
Zhang D M , Xu Y Y , Cai Y M . Linear water-filling power allocation algorithm in OFDMA System . Journal of Electronics &Information Technology , 2007 , 29 ( 6 ): 1286 ~ 1289
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