Title :
Distributed on-off uplink scheduling in CDMA systems with adaptive antenna arrays
Author :
Yaacoub, Elias ; Dawy, Zaher ; El-Hajj, Ali ; Kabalan, Karim Y.
Author_Institution :
Dept. of Electr. & Comput. Eng., American Univ. of Beirut, Beirut
Abstract :
Distributed uplink scheduling in CDMA systems is considered. Mobiles are allowed more autonomy in making transmission decisions in a scenario based on probabilistic on-off scheduling with and without token bucket constraints. The system model with omnidirectional antennas is generalized to the case where adaptive antennas are deployed at the base stations. Uniform linear antenna arrays with varying number of elements are proposed and their performance is compared to the omnidirectional case, showing substantial throughput gains.
Keywords :
adaptive antenna arrays; code division multiple access; linear antenna arrays; mobile radio; probability; scheduling; CDMA system; adaptive antenna array; base station; distributed on-off uplink scheduling; mobile user; omnidirectional antenna; probabilistic on-off scheduling; uniform linear antenna array; Adaptive arrays; Adaptive systems; Antenna arrays; Base stations; Interference; Linear antenna arrays; Member and Geographic Activities Board committees; Multiaccess communication; Processor scheduling; Throughput; Antenna arrays; CDMA systems; distributed uplink scheduling;
Conference_Titel :
Wireless Days, 2008. WD '08. 1st IFIP
Conference_Location :
Dubai
Print_ISBN :
978-1-4244-2828-1
Electronic_ISBN :
978-1-4244-2829-8
DOI :
10.1109/WD.2008.4812825
