Title :
Dynamic resource allocation for multimedia services over OFDM downlink in cellular systems
Author :
Le-Ngoc, Tho ; Damji, Navid ; Xu, Yang
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, Que., Canada
Abstract :
By using the time-varying channel responses of individual users, suitable dynamic resource allocation (DRA) strategies can improve resource utilization to provide broadband multimedia services of different QoS requirements over OFDM downlink in mobile cellular systems (Damji, N. and Le-Ngoc, T., ICC04, 2004). For non-realtime traffic, queueing can be used in conjunction with DRA to enhance further the system performance in terms of system spectral efficiency (b/s/Hz/cell) and system throughput. Performance of the proposed DRA schemes with queueing in various traffic and propagation conditions is evaluated and compared.
Keywords :
OFDM modulation; broadband networks; cellular radio; multimedia communication; quality of service; queueing theory; resource allocation; telecommunication traffic; time-varying channels; OFDM downlink; QoS; broadband multimedia services; dynamic resource allocation; mobile cellular systems; multimedia services; nonrealtime traffic; queueing; resource utilization; spectral efficiency; throughput; time-varying channel response; Bit error rate; Downlink; Fading; Multimedia systems; OFDM; Resource management; Signal to noise ratio; System performance; Throughput; Traffic control;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1390596
