NDLI: Improving delivery time guarantees for wireless data services

Content Provider	IEEE Xplore Digital Library
Author	Pal, S. Chatterjee, M. Das, S.K.
Copyright Year	2004
Description	Author affiliation: Center for Res. in Wireless Mobility & Networking, Texas Univ., Arlington, TX, USA (Pal, S.)
Abstract	The deployment of 3G cellular networks is ushering in a variety of data services in conjunction with the existing voice services. A major proportion of data services will include Web browsing and file downloads categorized as nonreal time services, for which there exists no service level agreement between the users and the providers on the quality of data services. In this paper, we address how to deal with the subjectiveness of user satisfaction or expectation from service providers by defining user irritation factors with the help of Sigmoid functions. These factors reflect users' sensitivity and tolerance to delay. We propose a scheduling algorithm to provide a bound on the delivery time of the entire data content. This algorithm takes into consideration the dynamic nature of the irritation factors, channel conditions, user classes, and fairness within individual classes. Soft-reservation schemes are also proposed to cater to the higher paying users. Exhaustive simulations are conducted with synthetically generated HTTP traffic and three classes of users. Experimental results demonstrate that the proposed scheme is able to provide bounded delay even when the system utilization is as high as 80%.
Starting Page	2539
Ending Page	2544
File Size	300108
Page Count	6
File Format	PDF
ISBN	0780383443
ISSN	15253511
DOI	10.1109/WCNC.2004.1311488
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-03-21
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Scheduling algorithm Delay effects Bandwidth Quality of service Real time systems Land mobile radio cellular systems Traffic control Algorithm design and analysis Wireless sensor networks
Content Type	Text
Resource Type	Article

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