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An Irregular Frequency Reuse Scheme for Cellular OFDMA Systems  

Kim, Young-Serk (Telecomm. R&D Center, Samsung Electronics)
Ryu, Chul (Department of Information and Communications Engineering, Dongguk University)
Rim, Min-Joong (Department of Information and Communications Engineering, Dongguk University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.44, no.7, 2007 , pp. 81-87 More about this Journal
Abstract
While conventional frequency reuse techniques for cellular communication systems divide frequency resources into multiple regions and each mobile is statically assigned to a certain frequency region, frequency reuse techniques for cellular OFDMA communication systems can be regarded as dynamic scheduling problems of finding best-fitted subcarriers for each packet transmission. Unlike conventional frequency reuse techniques allocating mutually exclusive frequency resources to adjacent cells, this paper proposes the use of a frequency reuse technique with irregular frequency allocation patterns assigned statically based on the cell numbers. This paper shows that the use of irregular frequency patterns can allow efficient interference avoidance and high data throughputs comparable to those with carefully planned frequency patterns.
Keywords
OFDMA; Cellular; Frequency Reuse; Irregular Pattern; Scheduling;
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