Mobile WiMAX: multi-cell network evaluation and capacity optimization

YQ Bian; AR Nix

doi:10.1109/VETECS.2008.269

Mobile WiMAX: multi-cell network evaluation and capacity optimization

YQ Bian, AR Nix

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

6 Citations (Scopus)

397 Downloads (Pure)

Abstract

The performance of a mobile WiMAX system is highly dependent on the application environment. Local clutter has a significant impact on the path loss exponent and the observed multipath statistics. The spectral efficiency of a WiMAX network can be enhanced if channel quality information is included as part of the system optimization process. This paper presents a comprehensive study of such a scenario, with numerical analysis of mobile WiMAX presented for a multi-cell deployment. In order to achieve high coverage and throughput to a large number of users, handover (HO) and link adaptation (LA) strategies are addressed. Interference is spatially separated through the use of dynamic channel allocation and WiMAX user assignment. Results show that coverage to 98% of the service area is achieved with an average throughput of 3.88 Mbps per sector. This is based on a 5MHz (512-FFT) OFDMA TDD profile (using one-third fractional reuse) deployed in licensed 3.5 GHz spectrum.

Translated title of the contribution	Mobile WiMAX: multi-cell network evaluation and capacity optimization
Original language	English
Title of host publication	IEEE Vehicular Technology Conference, 2008 (VTC Spring 2008), Singapore
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1276 - 1280
Number of pages	5
DOIs	https://doi.org/10.1109/VETECS.2008.269
Publication status	Published - May 2008
Event	Vehicular Technology Conference 2008 - Singapore, Singapore Duration: 1 May 2008 → …

Publication series

Name
ISSN (Print)	15502252

Conference

Conference	Vehicular Technology Conference 2008
Abbreviated title	VTC 2008-Spring
Country	Singapore
City	Singapore
Period	1/05/08 → …

Bibliographical note

Rose publication type: Conference contribution

Sponsorship: This work was funded by Toshiba Research Europe Ltd (TREL), Bristol, UK.

Terms of use: Copyright © 2008 IEEE. Reprinted from IEEE Vehicular Technology Conference, 2008 (VTC Spring 2008).

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.

Keywords

WiMAX
OFDMA
interference
handover
link adaption
channel allocation

Access to Document

10.1109/VETECS.2008.269

Bian IEEE VTC Spring2008Accepted author manuscript, 570 KB

http://hdl.handle.net/1983/1314

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Cite this

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abstract = "The performance of a mobile WiMAX system is highly dependent on the application environment. Local clutter has a significant impact on the path loss exponent and the observed multipath statistics. The spectral efficiency of a WiMAX network can be enhanced if channel quality information is included as part of the system optimization process. This paper presents a comprehensive study of such a scenario, with numerical analysis of mobile WiMAX presented for a multi-cell deployment. In order to achieve high coverage and throughput to a large number of users, handover (HO) and link adaptation (LA) strategies are addressed. Interference is spatially separated through the use of dynamic channel allocation and WiMAX user assignment. Results show that coverage to 98% of the service area is achieved with an average throughput of 3.88 Mbps per sector. This is based on a 5MHz (512-FFT) OFDMA TDD profile (using one-third fractional reuse) deployed in licensed 3.5 GHz spectrum.",

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author = "YQ Bian and AR Nix",

note = "Rose publication type: Conference contribution Sponsorship: This work was funded by Toshiba Research Europe Ltd (TREL), Bristol, UK. Terms of use: Copyright {\textcopyright} 2008 IEEE. Reprinted from IEEE Vehicular Technology Conference, 2008 (VTC Spring 2008). 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. ; Vehicular Technology Conference 2008, VTC 2008-Spring ; Conference date: 01-05-2008",

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AB - The performance of a mobile WiMAX system is highly dependent on the application environment. Local clutter has a significant impact on the path loss exponent and the observed multipath statistics. The spectral efficiency of a WiMAX network can be enhanced if channel quality information is included as part of the system optimization process. This paper presents a comprehensive study of such a scenario, with numerical analysis of mobile WiMAX presented for a multi-cell deployment. In order to achieve high coverage and throughput to a large number of users, handover (HO) and link adaptation (LA) strategies are addressed. Interference is spatially separated through the use of dynamic channel allocation and WiMAX user assignment. Results show that coverage to 98% of the service area is achieved with an average throughput of 3.88 Mbps per sector. This is based on a 5MHz (512-FFT) OFDMA TDD profile (using one-third fractional reuse) deployed in licensed 3.5 GHz spectrum.

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