An adaptive capacity enhancement strategy for sector-based cellular systems

Authors:
Jong-Shin Chen;Hsing-Chung Chen;Yung-Fa Huang;Ching-Chuan Wei;Kai-Cheng Chuang
Affiliations:
Department of Information and Communication Engineering, Chaoyang University of Technology, Taichung 413, Taiwan, ROC;Department of Computer Science and Information Engineering, Asia University, Taichung 413, Taiwan, ROC;Department of Information and Communication Engineering, Chaoyang University of Technology, Taichung 413, Taiwan, ROC;Department of Information and Communication Engineering, Chaoyang University of Technology, Taichung 413, Taiwan, ROC;Department of Information and Communication Engineering, Chaoyang University of Technology, Taichung 413, Taiwan, ROC
Venue:
Computers & Mathematics with Applications
Year:
2012

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Abstract

Sector-based cellular systems that are more flexible to enhance the system capacity will be the mainstream for wireless networks. In this framework, each base station (BS) has a number of antennas and each antenna responds for providing wireless communication services to the mobile hosts in a partial region, termed as a sector. However, the architecture generates a high ratio of overlapped area, which is partitioned into several subareas. An overlapped region means the region which more than one antenna can cover. Therefore, the overlapped region allocation to antennas will impact the traffic loads among the antennas and the capacity of the BS. Therefore, this study will present an area allocation strategy for sector-based cellular systems. This strategy considers the traffic loads to allocate the overlapped regions to antennas. Simulation results demonstrate our strategy can greatly enhance the system capacity.