NDLI: A transmit assignment algorithm for uplink flow control in WCDMA networks

Content Provider	IEEE Xplore Digital Library
Author	Haddad, E.C. Mermelstein, P. Despins, C.
Copyright Year	1999
Description	Author affiliation: INRS-Energie, Varennes, Que., Canada (Haddad, E.C.)
Abstract	We consider a distributed flow control algorithm which operates as part of the bandwidth management module of each cell in a multi-cellular wideband CDMA network. The algorithm controls the flow of packets time-slot by time-slot depending on the availability of radio resources as measured or predicted. A terminal's distance from the base station significantly influences the resources needed to transmit a packet, therefore terminals are grouped into spatial regions within which their resource requirements can be assumed equal. We formulate the position-based transmit assignment problem and propose a sub-optimal heuristic solution. Improvement in throughput and its trade-off with fairness among users in different regions is discussed. Results for average delay and throughput for a bursty packet arrival model are presented for two sets of radio resource conditions, an in-cell constrained system state and an out-of-cell constrained system state. The algorithm achieves high throughput and adapts easily to any desirable trade-off between throughput and fairness goals.
Starting Page	416
Ending Page	420
File Size	351517
Page Count	5
File Format	PDF
ISBN	0780354354
ISSN	10903038
DOI	10.1109/VETECF.1999.797168
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-09-19
Publisher Place	The Netherlands
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiaccess communication Throughput Distributed control Bandwidth Wideband Radio control Availability Fluid flow measurement Base stations Delay
Content Type	Text
Resource Type	Article

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