[1] Chen Liquan, Hu Aiqun, Ji Wenke,. MAC isolation to realize effective managementin public wireless LAN [J]. Journal of Southeast University (English Edition), 2004, 20 (2): 157-161. [doi:10.3969/j.issn.1003-7985.2004.02.006]

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MAC isolation to realize effective managementin public wireless LAN()

PWLAN中实现有效管理的MAC层隔离方法

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

20

Issue:

2004 2

Page:

157-161

Research Field:

Information and Communication Engineering

Publishing date:

2004-06-30

Info

Title:

MAC isolation to realize effective managementin public wireless LAN

PWLAN中实现有效管理的MAC层隔离方法

Author(s):

Chen Liquan¹;  Hu Aiqun¹;  Ji Wenke²

¹Research Center of Information Security, Southeast University, Nanjing 210096, China
² Motorola Global Software Group, Nanjing 210029, China

陈立全¹;  胡爱群¹;  计文柯²

¹东南大学信息安全研究中心, 南京 210096; ²Motorola全球软件集团, 南京 210029

Keywords:

wireless LAN;  medium access control(MAC)isolation;  access point;  embedded Linux

无线局域网;  MAC层隔离;  接入点;  嵌入式Linux

PACS:

TN915

DOI:

10.3969/j.issn.1003-7985.2004.02.006

Abstract:

This paper describes how to use medium access control(MAC)isolation to enhance management performance in public wireless LAN(PWLAN). To comply with the IEEE 802. 11 standards, a scheme to implement MAC isolation in WLAN access points by re-designing the Distribution_-Service component of the MAC state machine is proposed. A variable named dot11Isolation is defined to determine whether the MAC level communication between wireless stations in the same BSS is permitted or not. Finally, a design solution based on MPC860 hardware and embedded Linux software for PWLAN access point is specified. The simulation results of MAC isolation for PWLAN show that the proposed scheme is feasible and effective.

分析了在公共无线局域网(PWLAN)系统中为实现对用户统一有效管理而要求应用的二层隔离技术, 同时提出通过在无线接入点(AP)的媒体接入控制(MAC)层中定义一个隔离参量dot11Isolation, 并修改MAC层协议中Distribution_-Service模块的运行状态图以实现二层隔离的一种方法. 同时, 介绍了一个基于MPC860处理器并以嵌入式Linux操作系统为平台来实现二层隔离功能的WLAN AP设备实现方案. 仿真结果表明, 本文提出的二层隔离实现方法是有效可行的.

References:

[1] Ala-Laurila J, Mikkonen J, Rinnemaa J. Wireless LAN access network architecture for mobile operators [J]. IEEE Communications Magazine, 2001, 39(11): 82-89.
[2] Prasad A R, Moelard H, Kruys J. Security architecture for wireless LANs: corporate and public environment [A]. In: Proc Vehicular Technology Conf [C]. Tokyo, 2000(1): 15-18.
[3] Shen P, Cao X Y. The solution of AAA function in open RAN [J]. Journal of China Institute of Communication, 2003, 24(3): 91-97.(in Chinese)
[4] IEEE. Std802. 11 Part11: wireless LAN medium access control(MAC)and physical layer(PHY)specifications [S]. America: the IEEE Inc, 1999.
[5] IEEE. Std802. 11b Part11: wireless LAN medium access control(MAC)and physical layer(PHY)specifications: higher-speed physical layer extension in the 2. 4 GHz Band [S]. America: the IEEE Inc, 1999.
[6] Motorola. MPC860 PowerQUICC user’s manual [EB/OL].http: //e-www.motorola.com/files/netcomm/doc/ref_-manual/MPC860UM.pdf. 2003-03-31/2003-07-21.
[7] Wang W, Pang Z H, Liu N A. The realization of access point based on embedded Linux system [J]. Aviation Computer Technology, 2001, 31(4): 24-27.(in Chinese)
[8] Cha Hyun-Joon. Design and implementation of embedded Linux system for networking devices [EB/OL].http: //dpnm.postech.ac.kr/thesis/00/tachyon/. 2001/2003-08-06.

Memo

Memo:

Biographies: Chen Liquan(1976—), male, graduate; Hu Aiqun(corresponding author), male, doctor, professor, aqhu@seu.edu.cn.

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