A Novel Hybrid Diversity Receiver with Conditional Combining

Conference: European Wireless 2005 - 11th European Wireless Conference 2005 - Next Generation wireless and Mobile Communications and Services
04/10/2006 - 04/13/2005 at Nicosia, Cyprus

Proceedings: European Wireless 2005

Pages: 5Language: englishTyp: PDF

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Polydorou, Paraskevas (School of Interactive Arts and Technology, Simon Fraser University, Surrey, BC, Canada, V3T2W1)
Ho, Paul (School of Engineering Science, Simon Fraser University, Burnaby, BC, Canada, V5A1S6)

When selection or switch diversity is used at the receiver, use of differential detection is problematic as it requires two consecutive symbols from the same branch for correct operation. Therefore, unless special provisions are taken, the receiver would fail when switching to a different branch. We describe the operation of a novel conditional diversity receiver which overcomes this problem and outperforms the classical selection combining receiver while using the same number of receive chains. Results indicate that the performance of our receiver is bounded by the classical selection combining and the hybrid double selection / equal gain combining receivers. Furthermore, our receiver is shown to provide a clear advantage over the dual equal gain combining receiver due to its higher diversity order.