Title :
Wireless multicast with multi-user diversity
Author :
M.O. Sunay;A. Eksim
Author_Institution :
Dept. of Electr. & Electron. Eng., Koc Univ., Istanbul, Turkey
fDate :
6/26/1905 12:00:00 AM
Abstract :
Efficient wireless packet data access is possible by exploiting multi-user diversity. This is done by using an opportunistic multiple access system that allocates system resources to one user at a time while using adaptive modulation and coding. A scheduling algorithm provides resource allocation in such a system, and its proper design is crucial in ensuring satisfactory system performance. Multicasting is a spectrally efficient method of supporting group communication by allowing transmission of packets to multiple destinations using fewer resources. When the wireless opportunistic multiple access system provides a multitude of services, at least one of which is a multicast service, the scheduler needs to incorporate the service type as well as the time-varying wireless channel states and the individual observed user latencies for proper resource allocation. The paper presents a number of efficient scheduling algorithms that enable such an operation. Extensive, detailed simulations are performed to show the feasibility of the multicast service provisioning in the opportunistic multiple access system.
Keywords :
"Scheduling algorithm","Resource management","Throughput","Modulation coding","Delay","Wireless networks","Multicast algorithms","Algorithm design and analysis","System performance","Time varying systems"
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1390520