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Mobile WiMAX: MIMO performance analysis from a Quality of Service (QoS) viewpoint

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publicationIEEE Wireless Communications and Networking Conference (WCNC2009), Budapest, Hungary
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Publication dateApr 2009
Pages1 - 6
Number of pages6
ISBN (Print)9781424429479
DOIs
StatePublished

Publication series

Name
ISSN (Print)15253511

Conference

ConferenceWireless Communications and Networking Conference
CountryHungary
CityBudapest
Period1/04/09 → …

Abstract

The end-to-end performance of applications in broadband wireless networks is a key concern from the user perspective. Mobile WiMAX is designed to support a wide range of different applications including media streaming, voice-over- IP (VoIP), video conferencing, and web browsing. All of these applications require different levels of quality of service (QoS) and this imposes a variety of different performance requirements on the WiMAX physical (PHY) and medium access control (MAC) layers. For example, TCP-based applications such as FTP or Web-browsing use automatic-repeat-request (ARQ) to tolerate a relatively high PHY packet error rate (PER), whilst a UDP-based application such as video streaming requires very low PER due to the lack of ARQ. This means that the same WiMAX system configuration needs to be able to provide different performance levels for different types of applications in order to operate efficiently. This paper analyses and compares the performance of a multi-input multi-output (MIMO) mobile WiMAX system in terms of achievable throughput and operating range for different PHY PER requirements. The paper shows that TCP applications can achieve higher throughputs and operating ranges due to higher PER tolerance. It also shows that this important QoS parameter affects the AMC switching points. Cross-layer interaction is required between the PHY and the scheduler in the MAC layer in order to efficiently fulfil the various QoS requirements at the application layer

Additional information

Rose publication type: Conference contribution Additional information: With accompanying conference presentation Terms of use: Copyright © 2009 IEEE. Reprinted from IEEE Wireless Communications and Networking Conference, 2009 (WCNC 2009). This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Documents

DOI

Research areas

  • 802.16e, MIMO, BWA, mobile WiMAX, MAC

Event

Wireless Communications and Networking Conference

Duration1 Apr 2009 → …
CountryHungary
CityBudapest

Event: Conference

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