Improved MAC schemes for VoWLAN systems

doi:10.3778/j.issn.1002-8331.2009.12.033

Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (12): 101-103.DOI: 10.3778/j.issn.1002-8331.2009.12.033

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Improved MAC schemes for VoWLAN systems

XIAO Da,LIN Bi-jiao,XIAO Ming-bo

Department of Communication Engineering，Institute of Information Science and Technology，Xiamen University，Xiamen，Fujian 361005，China

Received:2008-03-04 Revised:2008-05-12 Online:2009-04-21 Published:2009-04-21
Contact: XIAO Da

VoWLAN系统的MAC层改进机制

肖达,林碧娇,肖明波

厦门大学信息科学与技术学院通信工程系，福建厦门 361005

通讯作者: 肖达

Abstract

Abstract: IEEE 802.11b DCF was designed to provide wireless data access to support real-time services such as voice. This paper proposed two modified MAC schemes to improve capacity and efficiency of Voice over WLAN（VoWLAN） systems.Analysis and simulation results show that the proposed schemes effectively improve the system capacity，while QoS requirements，such as delay，delay jitter，and average loss rate，are guaranteed.

Key words: Voice over WLAN（VoWLAN ）, Media Access Control（MAC）, Time Division Multiple Access（TDMA）

摘要： IEEE 802.11b的DCF接入方式是为无线数据业务提供接入而设计的，不能有效地支持诸如语音之类的实时业务。提出了两种改进的MAC层机制来提高无线局域网上传输语音（VoWLAN）的系统容量和有效性。分析和仿真结果表明，改进机制显著提高了系统容量，并保证了传输延迟、抖动和平均丢包率等服务质量（QoS）要求。

关键词: 无线局域网的语音传输, 媒体访问控制子层, 时分多址

XIAO Da,LIN Bi-jiao,XIAO Ming-bo. Improved MAC schemes for VoWLAN systems[J]. Computer Engineering and Applications, 2009, 45(12): 101-103.

肖达,林碧娇,肖明波. VoWLAN系统的MAC层改进机制[J]. 计算机工程与应用, 2009, 45(12): 101-103.

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Improved MAC schemes for VoWLAN systems

VoWLAN系统的MAC层改进机制

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