Abstract | ||
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Some studies have been done on capacity of a code division multiple access (CDMA) system with mixed multirate sources. However, a vast majority of these studies have concentrated on the reverse-link. This trend comes from the fact that the capacity of a CDMA system is reverse-link limited. However, the forward-link can be a limiting link because emerging data services are likely to require higher data rates in the forward-link than in the reverse-link. In this paper, we analyze and simulate the forward-link capacity of a CDMA system with mixed multirate sources in a multipath fading channel. The outage probability of the forward-link is derived for a CDMA system with mixed multirate sources. By introducing a forward-link power factor, the forward-link Erlang capacity is obtained in a closed form. The forward-link capacity is analyzed in terms of the number of multipaths, the number of RAKE fingers in a mobile station, closed-loop power control, and impact of soft handoff. The results in this paper can be applied to overall system design of a CDMA system with multimedia services in future mobile communication systems |
Year | DOI | Venue |
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2001 | 10.1109/25.933309 | IEEE T. Vehicular Technology |
Keywords | Field | DocType |
mobile communication systems,multiuser channels,radio links,mobile station,power control,data communication,forward-link power factor,rake fingers,multipaths,cellular radio,fading channels,forward-link capacity,multipath fading channel,soft handoff,reverse-link limited system capacity,closed-loop power control,system capacity,multipath channels,multimedia services,mixed multirate sources,spread spectrum communication,outage probability,code division multiple access,system design,channel capacity,forward-link erlang capacity,ds/cdma system,telecommunication control,data services,multimedia communication,closed form capacity,power factor,reactive power,mobile communication,indexing terms,fading | Rake,Mobile station,Computer science,Fading,Soft handover,Power control,CDMA spectral efficiency,Computer network,Capacity planning,Electronic engineering,Code division multiple access | Journal |
Volume | Issue | ISSN |
50 | 3 | 0018-9545 |
Citations | PageRank | References |
45 | 3.79 | 5 |
Authors | ||
2 |
Name | Order | Citations | PageRank |
---|---|---|---|
Wan Choi | 1 | 280 | 25.77 |
Jin Young Kim | 2 | 497 | 81.76 |