Title :
Power allocation for DS-CDMA system supporting heterogeneous traffic with decorrelating detector
Author :
Mao, Zhiwei ; Bhargava, Vijay K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fDate :
6/24/1905 12:00:00 AM
Abstract :
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.
Keywords :
cellular radio; code division multiple access; decorrelation; multiuser channels; quality of service; signal detection; spread spectrum communication; telecommunication traffic; BPSK DS-CDMA system; BS transmission power constraints; DS-CDMA system; QoS; UTXPA algorithm; base station; decorrelating detector; direct sequence code division multiple access; heterogeneous traffic; multiple-cell DS-CDMA systems; optimal algorithm; power allocation; quality of service constraints; receiver; reduced computational complexity; single-cell DS-CDMA systems; unit transmission power allocation algorithm; Computational complexity; Decorrelation; Detectors; Modulation; Multiaccess communication; Multiuser detection; Quality of service; Streaming media; Traffic control; Video recording;
Conference_Titel :
Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Print_ISBN :
0-7803-7484-3
DOI :
10.1109/VTC.2002.1002538
