Fairness Property and TCP-Level Performance of Unified Scheduling Algorithm in HSDPA Networks

- Channel-state-aware scheduling strategies on wireless links play an essential role for enhancing throughput performance of elastic data traffic by exploiting channel fluctuations. Especially in HSDPA (High-Speed Downlink Packet Access), while various channel-state-aware schedulers have been proposed, each of them has pros and cons, and thus, none of them can be the best solution for all situations and policies in the base station management. To respond to the variety of the base station management, in our previous paper, a unified scheduler that can flexibly vary its characteristics by adjusting its parameters has been proposed, but only the basic packet-level performance was evaluated. In this paper, therefore, the detailed performance characteristics of the proposed unified scheduler are investigated. First, it is shown that the unified scheduler achieves a general fairness criterion—(p, α)-Proportional Fairness—in terms of the asymptotic behavior of the long-term averag...

• Type: Conference
• Year: 2004
• Where: ECUMN
• Authors: Yoshiaki Ohta, Masato Tsuru, Yuji Oie
• Keywords: Base Station Management, ECUMN 2004, TCP-level Throughput Performance, Unified Scheduler