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Macrodiversity in DS/CDMA Asynchronous Systems with Decorrelating Detectors

Authors
  • Bravo, A.M.1
  • Bhargava, V.K.2
  • 1 Universidad de Valladolid, E.T.S.I. Telecomunicación, Spain
  • 2 University of Victoria, Department of Electrical and Computer Engineering, Australia
Type
Published Article
Journal
Wireless Personal Communications
Publisher
Springer-Verlag
Publication Date
Mar 01, 2001
Volume
16
Issue
3
Pages
229–243
Identifiers
DOI: 10.1023/A:1008995826675
Source
Springer Nature
Keywords
License
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Abstract

This paper analyzes the application of macrodiversity in Code DivisionMultiple Access (CDMA) asynchronous systems with decorrelatingdetection in the reverse link. It is shown that decorrelatingdetectors allow predetection combining and, utilizing this property,several combining strategies are studied. We obtain the set ofcombining factors which minimize the bit error probability, andbased on these results, we propose the Simplified Minimum ErrorCriterion (SMEC), which has little impact on the overallcomplexity of the system and outperforms theMaximal Signal to Interference plus Noise Ratio Combiner(MSINRC). Using this technique, it is possible to perform a distributeddetection in the area influenced by the mobile, allowing thecoexistence of heterogeneous cells and the effective useof microcells.

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