异构无线网络多链路接入动态资源分配算法

俞鹤伟; 梁根; 秦勇

doi:10.11999/JEIT160583

异构无线网络多链路接入动态资源分配算法

doi: 10.11999/JEIT160583

1.
(华南理工大学计算机科学与工程学院广州 510641) ②(广东石油化工学院理学院茂名 525000) ③(东莞理工学院计算机学院东莞 523808)

基金项目:

国家自然科学基金(61070179, 61003066)，广东省自然科学基金(10151601501000015)

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- 文章访问数: 1189
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- 被引次数: 0
出版历程
- 收稿日期: 2016-06-03
- 修回日期: 2016-12-12
- 刊出日期: 2017-04-19

Multiple Link Access and Dynamic Resource Allocation Algorithm in Heterogeneous Wireless Networks

1.
(School of Computer Science and Engineering, South China University of Technology, Guangzhou 510641, China)

Funds:

The National Natural Science Foundation of China (61070179, 61003066), The Natural Science Foundation of Guangdong Province (10151601501000015)

摘要

摘要: 异构无线网络(Heterogeneous Wireless Networks, HWNs)环境下现有接入控制算法的主要问题是通过单一的传输链路建立移动用户和无线网络之间的连接，并且接入过程中的资源分配没有对全网的传输性能进行优化。为了解决上述问题，该文分析了HWNs中的资源分配模型和链路接入速率模型，提出一种支持多链路接入的动态资源分配算法MLA-DRA。算法以最大化系统传输速率为目标，将用户接入过程转化为前后相互联系的多阶段决策过程，利用前一阶段用户的资源分配状态计算下一阶段用户的最优解，从而推导出系统传输速率的最优值。在仿真平台上对MLA-DRA算法进行了性能分析，并且和其它算法进行了性能比较，实验结果表明，MLA-DRA算法能有效利用系统资源以及提高系统传输速率。
- 异构无线网络 /
- 动态分配 /
- 剩余带宽 /
- 最大速率
Abstract: The main problems in the existing access control algorithm under the environment of Heterogeneous Wireless Networks (HWNs) is to set up the connection between mobile users and wireless network through a single transmission link and the resources allocation lacks for optimizing transmission of the whole network in the access process. In order to solve the above problems, the resource allocation model and access link rate model in HWNs are analyzed, and a Multiple Link Access and Dynamic Resource Allocation (MLA-DRA) algorithm that supports multi-link access is proposed in this paper. The algorithm takes the maximum of the system transmission rate as object function, transfers the user access process into the multi-stage decision process that is mutually connected, and employs the previous resource allocation state to calculate the optimal solution of next user, thus deduces the optimal value of system transmission rate. In the simulation platform, the performance of MLA-DRA algorithm is analyzed, and is compared with other algorithms. Experimental results show that MLA-DRA algorithm can effectively utilize the system resources and improve the system transmission rate.
- Heterogeneous Wireless Networks (HWNs) /
- Dynamic allocation /
- Residual bandwidth /
- Maximum rate

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参考文献(14)

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