NDLI: Dynamic Frequency Allocation in Fractional Frequency Reused OFDMA Networks

Content Provider	IEEE Xplore Digital Library
Author	Ali, S.H. Leung, V.C.M.
Copyright Year	2008
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Univ. of British Columbia Vancouver, Vancouver, BC (Ali, S.H.; Leung, V.C.M.)
Abstract	This paper considers the problem of subcarrier scheduling in the downlink of multicell OFDMA networks. It proposes a dynamic fractional frequency reuse cell architecture that partitions subcarriers into two groups. One is reused in the whole cell area whereas the other is partitioned into sectors and used orthogonally. The proposed architecture allows dynamic allocation of users to the group of subcarriers. This dynamic allocation of users is different from the existing architectures where users are partitioned according to fixed thresholds. Next, we propose an efficient hierarchical solution which first allocates subcarriers to the groups and next opportunistically schedules subcarriers to the users. The overall scheme allows frequency reuse factor of 1 with reduced inter-cell interference, increased trunking gain and satisfied minimum data rate requirements. Simulation results illustrate the usefulness of the proposed solution.
Starting Page	1
Ending Page	6
File Size	262372
Page Count	6
File Format	PDF
ISBN	9781424430611
e-ISBN	9781424430628
DOI	10.1109/GLOCOMW.2008.ECP.82
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless LAN Processor scheduling OFDM Interference Bandwidth Diversity methods Frequency conversion Resource management Radio spectrum management Digital video broadcasting
Content Type	Text
Resource Type	Article

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