Title: Adaptive selection combining for soft handover in OVSFW-CDMA systems
Authors: Lin, KJ
Tseng, YC
資訊工程學系
Department of Computer Science
Keywords: active set;orthogonal variable spreading factor (OVSF);selection combining;soft handover;W-CDMA
Issue Date: 1-Nov-2004
Abstract: In W-CDMA, soft handover is supported at cell boundaries to maintain communication quality. The maximal ratio combining (MRC) and generalized selection combining (GSC) [1], [2] are two possible approaches. However, soft handover is resource-intensive. In this letter, we propose an adaptive selection combining (ASC) scheme that can switch flexibly between MRC and GSC so as to take care of both channel loading and communication quality. The signal-to-interference-and-noise ratio (SINR) is kept as high as that of MRC while the blocking probability can remain at about the same level as that of GSC.
URI: http://dx.doi.org/10.1109/LCOMM.2004.837626
http://hdl.handle.net/11536/25724
ISSN: 1089-7798
DOI: 10.1109/LCOMM.2004.837626
Journal: IEEE COMMUNICATIONS LETTERS
Volume: 8
Issue: 11
Begin Page: 656
End Page: 658
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