Adaptive resource allocation for multi-user OFDM based on Bee Colony algorithm

被引：0
|
作者：
Yuan J.-G. [1 ]
Nan S.-C. [1 ]
Zhang F. [1 ]
Wang J.-X. [1 ]
Pang Y. [1 ]
机构：
[1] Chongqing Key Laboratory of Photoelectronic Information Sensing and Transmitting Technology, Chongqing University of Posts and Telecommunications, Chongqing
来源：
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2019年 / 49卷 / 02期
关键词：
Adaptive resource allocation; Artificial bee colony algorithm; Communication technology; Orthogonal frequency division multiplexing; Power allocation; Subcarrier allocation;
D O I：
10.13229/j.cnki.jdxbgxb20170022
中图分类号：
学科分类号：
摘要：
To solve the problems of user fairness and system capacity in adaptive resource allocation for multi-user Orthogonal Frequency Division Multiplexing (OFDM), a scheme of combining subcarrier allocation and power allocation is proposed. In the subcarrier allocation, the number of subcarriers required by each user is determined first, then the subcarriers are continuously allocated according to the users' rate proportionality, and finally the remaining subcarriers are allocated. In the power allocation, the power optimization among all users is achieved through global search using Artificial Bee Colony (ABC) algorithm, and the equal power allocation method is used to carry out single-user power allocation of subcarriers to each user. Simulation results show that the proposed scheme not only takes into account the user fairness, but also effectively improves the throughput of the system, thus proving the effectiveness of proposed scheme. © 2019, Jilin University Press. All right reserved.
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页码：624 / 630
页数：6
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