Radio resource assignment in multiple-chip-rate DS/CDMA systems supporting multimedia services

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This paper is concerned with radio resource allocation in multiple-chip-rate (MCR) DS/CDMA systems accommodating multimedia services with different information rates and quality requirements. Considering both power spectral density (PSD) over a radio frequency (RF) band and the effect of RF input filtering on the receiver in MCR-DS/CDMA systems, criteria for capacity estimation are presented and the characteristics of co-channel interference between subsystems are investigated. System performance in MCR-DS/CDMA systems is strongly affected by radio resource assignment. A minimum power-increment-based resource assignment scheme for an efficient resource assignment scheme is proposed herein. The performance of this scheme is compared with that of a random-based resource assignment scheme in terms of blocking probability and normalized throughput. The minimum power-increment-based resource assignment scheme yields a better performance than the random-based resource assignment scheme for multimedia services.
Publisher
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Issue Date
1999-01
Language
English
Article Type
Article
Keywords

SPREAD-SPECTRUM; CELLULAR-SYSTEMS; CDMA SYSTEM; PERFORMANCE; CAPACITY; COMMUNICATION; MANAGEMENT; NETWORKS; DESIGN

Citation

IEICE TRANSACTIONS ON COMMUNICATIONS, v.E82B, no.1, pp.145 - 155

ISSN
0916-8516
URI
http://hdl.handle.net/10203/77426
Appears in Collection
EE-Journal Papers(저널논문)
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