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A novel macrodiversity technique for improvement in BER of wireless cellular systems

By Chih-peng Li and Z. J. Haas


error rate The authors analyse a novel macrodiversity scheme, the multiply-detected macrodiversity (MDM) scheme, whch relies on post-detection combining, as opposed to the traditional macrodiversity techniques, which are selection-based. The average fraction of the cell area is evaluated with an improved bit error rate (BER) performance, average BER improvement, and improvement in the average outage probability, relative to three other selection-based macrodiversity schemes. As a point of reference, the average improvement in BER is always at least one order of magnitude throughout at least 25 % of the cell area, when the probability of the co-channel interferer's presence is not>70%. Introduction: Conventional macrodiversity methods consist of receiving a mobile unit transmission at a number of base-stations simultaneously and selecting the one with the best signal quality

Topics: Indexing terms, Mobile communication systems, Cellular radio, Bit
Year: 1997
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