DocumentCode :
1280997
Title :
Soft handoff algorithm with variable thresholds in CDMA cellular systems
Author :
Hwang, Seon-Ho ; Kim, Seong-Lyun ; Oh, Hyun-Seo ; Kang, Chang-Eon ; Son, Jung-Young
Author_Institution :
Mobile Commun. Syst. Dept., Electron. & Telecommun. Res. Inst., Taejon, South Korea
Volume :
33
Issue :
19
fYear :
1997
fDate :
9/11/1997 12:00:00 AM
Firstpage :
1602
Lastpage :
1603
Abstract :
Traffic nonuniformity degrades the performance of CDMA cellular systems. The authors present a new algorithm called the variable threshold soft handoff (VTSH) which reduces the performance degradation due to traffic nonuniformity in CDMA cellular systems. Unlike the conventional fixed handoff thresholds, the proposed algorithm allows the handoff thresholds (T ADD and T DROP) to vary dynamically according to the traffic density of each cell. This algorithm has been implemented by means of computer simulation and the results show that VTSH improves the overall CDMA system performance in terms of outage probability. The VTSH algorithm can easily be applied to CDMA cellular systems without any modification
Keywords :
cellular radio; code division multiple access; telecommunication traffic; CDMA cellular systems; outage probability; performance degradation; soft handoff algorithm; traffic density; traffic nonuniformity; variable thresholds;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:19971098
Filename :
629580
Link To Document :
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