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Interference cancellation for a multicellular CDMA environment

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Abstract

This paper considers the performance of adaptive interference cancellation applied to a CDMA microcellular environment, by employing a circular cell geometry and a closed form expression for the Bit Error Rate of a CDMA system with interference cancellation to analyze the effect of out-of-cell interference. Results are presented which indicate that out-of-cell interference will severely limit the benefits of interference cancellation in a multicellular system. Attempts to cancel all out-of-cell interference will further degrade performance. However, the use of selective interference cancellation in which only the strongest out-of-cell interferers are cancelled may result in significant performance enhancement. These results agree closely with those obtained using a hexagonal geometry.

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Authors and Affiliations

  1. Mobile and Portable Radio Research Group, The Bradley Department of Electrical Engineering, Virginia Polytechnic Institute and State University, 840 University City Boulevard, Suite #1, 24061-0350, Blacksburg, VA, USA

    Parag Agashe & Brian Woerner

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  1. Parag Agashe
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  2. Brian Woerner
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Agashe, P., Woerner, B. Interference cancellation for a multicellular CDMA environment. Wireless Personal Communications 3, 1–15 (1996). https://doi.org/10.1007/BF00333920

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