Title :
Novel fuzzy scheduling supporting quality of service for wideband CDMA cellular networks
Author :
Bolin, Nie ; Lemin, Li
Author_Institution :
Sch. of Commun. & Inf. Eng., Univ. of Electron. Sci. & Technol. of China, Sichuan, China
Abstract :
We consider the problem of high-speed downlink packet scheduling which can support real-time data services for multiple mobile users sharing a wireless time-varying channel in cellular CDMA wireless networks. In order to satisfy the diverse QoS requirements of real-time services and at the meantime make the best use of the time-varying nature of wireless fading channel to improve the overall performance of the system, we design a computationally efficient scheduling algorithm based on fuzzy logic, which is called fuzzy rule based opportunistic scheduling (FROS). FROS is able to strike a satisfactory balance between the multiuser diversity gain and the QoS provisioning for mobile users. System-level simulations show that FROS has better performance compared with the M-LWDF or EXP-rule algorithm over non-stationary wireless channels.
Keywords :
cellular radio; code division multiple access; data communication; diversity reception; fading channels; fuzzy logic; multiuser channels; packet radio networks; quality of service; scheduling; time-varying channels; FROS; QoS provisioning; fuzzy logic; fuzzy rule based opportunistic scheduling; high-speed downlink packet scheduling; multiple mobile users; multiuser diversity gain; nonstationary wireless channels; performance; quality of service; real-time data services; wideband CDMA cellular networks; wireless fading channel; wireless time-varying channel; Cellular networks; Downlink; Fuzzy logic; Land mobile radio cellular systems; Multiaccess communication; Quality of service; Scheduling algorithm; Time-varying channels; Wideband; Wireless networks;
Conference_Titel :
Communications, Circuits and Systems, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7803-9015-6
DOI :
10.1109/ICCCAS.2005.1493427
