Sciweavers

Share
INFOCOM
2003
IEEE

User-Level Performance of Channel-Aware Scheduling Algorithms in Wireless Data Networks

9 years 3 months ago
User-Level Performance of Channel-Aware Scheduling Algorithms in Wireless Data Networks
— Channel-aware scheduling strategies, such as the Proportional Fair algorithm for the CDMA 1xEV-DO system, provide an effective mechanism for improving throughput performance in wireless data networks by exploiting channel fluctuations. The performance of channel-aware scheduling algorithms has mostly been explored at the packet level for a static user population, often assuming infinite backlogs. In the present paper, we focus on the performance at the flow level in a dynamic setting with random finite-size service demands. We show that in certain cases the user-level performance may be evaluated by means of a multi-class Processor-Sharing model where the total service rate varies with the total number of users. The latter model provides explicit formulas for the distribution of the number of active users of the various classes, the mean response times, the blocking probabilities, and the mean throughput. In addition we show that, in the presence of channel variations, greedy, ...
Sem C. Borst
Added 04 Jul 2010
Updated 04 Jul 2010
Type Conference
Year 2003
Where INFOCOM
Authors Sem C. Borst
Comments (0)
books