Characterization of soft handoff in CDMA systems

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Many analytical approaches have been proposed for handoff analysis based on hard handoff in mobile communication systems. In code-division multiple-access (CDMA) systems with soft handoff, mobile stations (MS's) within a soft-handoff region (SR) use multiple radio channels and receive their signals from multiple base stations (BS's) simultaneously. Therefore, SR's should be considered for handoff analysis in CDMA systems. In this paper, an analytical model for soft handoff in CDMA systems is developed by introducing an overlap_region between adjacent cells and the handoff call attempt rate and the channel holding times are derived. Applying these results to a nonprioritized CDMA system, the effects of soft handoff and the mean cell residual time are investigated and compared with hard handoff.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
1999-07
Language
English
Article Type
Article
Keywords

PERFORMANCE ANALYSIS; CELLULAR CDMA; CAPACITY

Citation

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.48, no.4, pp.1195 - 1202

ISSN
0018-9545
URI
http://hdl.handle.net/10203/9006
Appears in Collection
EE-Journal Papers(저널논문)
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