Power allocation for DS-CDMA system supporting heterogeneous traffic with decorrelating detector

TitlePower allocation for DS-CDMA system supporting heterogeneous traffic with decorrelating detector
Publication TypeConference Paper
Year of Publication2002
AuthorsMao, Z., and V. K. Bhargava
Conference NameVehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Pagination537 - 541 vol.2
Keywordsbase station, BPSK DS-CDMA system, BS transmission power constraints, cellular radio, code division multiple access, decorrelating detector, decorrelation, direct sequence code division multiple access, DS-CDMA system, heterogeneous traffic, multiple-cell DS-CDMA systems, multiuser channels, optimal algorithm, power allocation, QoS, quality of service, quality of service constraints, receiver, reduced computational complexity, signal detection, single-cell DS-CDMA systems, spread spectrum communication, telecommunication traffic, unit transmission power allocation algorithm, UTXPA algorithm

Algorithms are developed to solve the power allocation problem at the base station (BS) under the constraints of BS transmission power and quality of service (QoS) for single-cell and multiple-cell direct-sequence code-division-multiple-access (DS-CDMA) systems supporting heterogeneous traffic, where a decorrelating detector is employed at the receiver. The presented numerical examples show that the unit transmission power allocation (UTXPA) algorithm offers performance close to that of the optimal algorithm with much reduced computational complexity.


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