A NEW APPROACH FOR EFFICIENT UTILIZATION OF RESOURCES IN WIMAX CELLULAR NETWORKS

Journal article

Authors/Editors

Yahya, Abid

Research Areas

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Publication Details

Author list: Salman MK, Ahmad RB, Yahya A

Publisher: Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek

Place: SLAVONSKI BROD

Publication year: 2014

Journal acronym: TEH VJESN

Volume number: 21

Issue number: 6

Start page: 1385

End page: 1393

Number of pages: 9

ISSN: 1330-3651

Languages: English-Great Britain (EN-GB)

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Abstract

This paper proposes new static resource utilization (SRU) approach by using the fractional frequency reuse (FFR) technique to enhance resource exploitation in Worldwide Interoperability for Microwave Access (WiMAX) 802.16e. This approach not only efficiently enhances resource exploitation in the base station (BS) but also increases the data rate and number of served users. This work considers the downlink sub-frame of WiMAX BS by using the partial usage of sub-channel mode and the orthogonal frequency division multiplexing access. Five cases were included as a trade-off study to identify the best way of utilizing BS resources in the FFR technique. Theoretical analysis was conducted to present a new formula for the FFR data rate. Simulation results (cases 5 and 4) reveal that the proposed approach has an advantage over the traditional FFR technique in various metrics. The number of served users and slots utilized was increased by 100 % when case 5 was considered. By contrast, the data rate (8,69 Mbit/s), subcarrier efficiency (2,02 bit/subcarrier/burst), and spectral efficiency (0,869 bit/s/H) were enhanced when case 4 was considered. The efficient utilization of bandwidth and resources has made the proposed approach a compelling candidate for cellular network deployment.

Keywords

BS performance, Data Rate, FFR, Resource Utilization, Serving Users, Spectral Efficiency, Static Mode, WiMAX

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