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Downlink load control for non real-time services in WCDMA systems
2000 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The limiting factor of a well-designed system based on WCDMA technology is the transmission power. An unloaded system is limited by the uplink transmission power but a loaded system may be limited by the downlink transmission power if services such as WWW and file transfer are the most commonly used. To use the power resource as efficient as possible a dynamic allocation strategy based on the current traffic situation is needed. Such a mechanism is called load control and this thesis studies load control algorithms suitable for downlink transmission of non real-time services. Algorithms that use round robin, packet arrival time and transmission power as priority scheme are investigated and simulated in a single cell WCDMA environment. The result shows that an algorithm based on a combination of round robin and transmission power is the one to prefer among the investigated algorithms in this thesis.

Place, publisher, year, edition, pages
2000.
Keyword [en]
Technology, Wireless, WCDMA, Downlink, Load Control
Keyword [sv]
Teknik
Identifiers
URN: urn:nbn:se:ltu:diva-58005ISRN: LTU-EX--00/227--SELocal ID: e99cf8bb-aa14-4525-a214-8f7c4f6470a6OAI: oai:DiVA.org:ltu-58005DiVA: diva2:1031393
Subject / course
Student thesis, at least 30 credits
Educational program
Computer Science and Engineering, master's level
Examiners
Note
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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