WIFI融合网络新型接入点部署方案

doi:10.3785/j.issn.1008-973X.2019.09.020

浙江大学学报(工学版)

2019, Vol. 53

Issue (9): 1805-1814 DOI: 10.3785/j.issn.1008-973X.2019.09.020

通信技术、电气工程

WIFI融合网络新型接入点部署方案

吴端坡1(

),孔正宇1,岑曙炜2,金心宇3,*(

)

1. 杭州电子科技大学通信工程学院，浙江杭州 310018
2. 中国移动通信集团浙江有限公司杭州分公司，浙江杭州 310006
3. 浙江大学信息与电子工程学系，浙江杭州 310027

Novel access point deployment method in WIFI convergence network

Duan-po WU1(

),Zheng-yu KONG1,Shu-wei CEN2,Xin-yu JIN3,*(

)

1. School of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
2. China Mobile Communications Group Zhejiang Co., Ltd. Hangzhou Branch, Hangzhou 310006, China
3. Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China

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摘要：

为了充分利用免许可频段，减轻蜂窝网络压力，提高用户吞吐量，针对WIFI融合网络中无线接入点(AP)部署方式，提出基于优先级划分的AP部署方案. 通过分析AP与小基站(SBS)覆盖范围特点，将AP划分为高优先级的专属AP与低优先级的共享AP. 针对提出的部署方案，设计业务卸载、资源共享、混合模式3种AP资源调度方式. 动态分析WIFI融合网络在未饱和、半饱和、饱和3种工作状态下的整体性能. 结果表明: 与传统的AP部署方案相比，提出的方案在未饱和状态下用户平均吞吐量的性能提升了3% ~10%，在半饱和状态下平均吞吐量性能提升了5%~20%，在饱和状态下可提供与传统AP部署方案相同的性能.

关键词： 免许可频段; LTE与WIFI共存; 接入点 (AP) 部署; 优先级; 业务卸载; 资源共享; 蜂窝网络

Abstract:

A priority-based access point (AP) deployment scheme was proposed in the WIFI convergence network, in order to make full use of the unlicensed frequency band, reducing the pressure of the cellular network, and improve the user throughput. By analyzing the characteristics of AP and small base station (SBS) coverage, the APs were divided into high-priority dedicated APs and lower-priority shared APs. Meanwhile, for the proposed AP deployment schemes, three APs resource scheduling modes were proposed, including traffic offloading, resource sharing and hybrid mode. The performance of WIFI convergence network in the unsaturated, semi-saturated, and saturated state was dynamically analyzed. Results show that, compared with the traditional AP deployment scheme, the proposed scheme improved the average throughput of the user by 3%~10% in the unsaturated state, and by 5%~20% in the semi-saturated state, and provides the same performance as traditional AP deployment scheme in the saturated state.

Key words: unlicensed band LTE and WIFI coexistence access point (AP) deployment priority traffic offloading resource sharing cellular network

收稿日期: 2019-01-20 出版日期: 2019-09-12

CLC:

TN 9

通讯作者: 金心宇 E-mail: wuduanpo@hdu.edu.cn;jinxy@zju.edu.cn

作者简介: 吴端坡(1988—)，男，讲师，博士，从事无线宽带网络通信与信息处理研究.orcid.org/0000-0001-6954-6587.E-mail： wuduanpo@hdu.edu.cn

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引用本文:

吴端坡,孔正宇,岑曙炜,金心宇. WIFI融合网络新型接入点部署方案[J]. 浙江大学学报(工学版), 2019, 53(9): 1805-1814.

Duan-po WU,Zheng-yu KONG,Shu-wei CEN,Xin-yu JIN. Novel access point deployment method in WIFI convergence network. Journal of ZheJiang University (Engineering Science), 2019, 53(9): 1805-1814.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2019.09.020 或 http://www.zjujournals.com/eng/CN/Y2019/V53/I9/1805

图 1 长期演进(LTE)和WIFI共存系统模型

图 2 传统AP部署方案下的业务卸载、资源共享、混合模式

表 1 WIFI吞吐量仿真参数表

图 3 未饱和状态时SBS在2种AP部署方案下的业务卸载、资源共享、混合模式的平均用户吞吐量

图 4 半饱和状态时SBS在两种AP部署方案下的业务卸载、资源共享、混合模式的平均用户吞吐量

图 5 饱和状态下时SBS在两种AP部署方案下的业务卸载、资源共享、混合模式的平均用户吞吐量

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