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On frequency reuse in cooperative distributed antenna systems

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1 Author(s)
Huiling Zhu ; Sch. of Eng. & Digital Arts, Univ. of Kent, Canterbury, UK

The cooperative distributed antenna system (DAS) is one of the promising systems for future high-data-rate mobile communications, since the DAS can reduce the radio transmission distance between the transmitter and the receiver by distributing multiple remote antenna units in the traditional cellular network. In order to achieve high spectrum efficiency in the DAS, frequency reuse is considered. In this article, two values of frequency reuse factor are considered in conjunction with cooperative spatial diversity. In order to show the advantage of introducing frequency reuse, the performance of the DAS with frequency reuse is compared with that without frequency reuse. Results show that the DAS with frequency reuse outperforms the DAS without frequency reuse in the average spectrum efficiency per sector and the cell edge spectrum efficiency. The DAS with larger frequency reuse factor outperforms the DAS with smaller frequency reuse factor for a large range of signal-to- noise ratio.

Published in:

Communications Magazine, IEEE  (Volume:50 ,  Issue: 4 )