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Effects on TCP from radio-block scheduling in WCDMA high speed downlink shared channels
Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.ORCID-id: 0000-0001-5408-0008
Ericsson Research, SE – 971 87, Luleå, Sweden.
2003 (Engelska)Ingår i: Quality for all: 4th COST 263 International Workshop on Quality of Future Internet Services, QoFIS 2003, Stockholm, Sweden, October 1-2, 2003 : proceedings / [ed] Gunnar Karlsson; Michael I. Smirnov, Berlin: Encyclopedia of Global Archaeology/Springer Verlag, 2003, s. 214-223Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Avoiding delay jitter is essential to achieve high throughput for TCP. In particular, delay spikes can cause spurious timeouts. Such timeouts force TCP into slow-start, which may reduce congestion window sizes drastically. Consequently, there may not always be data available for transmission on bottleneck links. For HS-DSCH, jitter can occur due to varying interference. Also, properties of the radio-block scheduling influence the jitter. We evaluate, through simulations, effects on TCP from scheduling. Our evaluation shows that round-robin (RR) schedulers can give more jitter than SIR schedulers. SIR schedulers discriminates low SIR users to improve spectrum utilization while RR schedulers distribute transmission capacity fairly. The high jitter with RR scheduling cause however both lower utilization and decreased fairness in throughput among users than with SIR scheduling. The Eifel algorithm makes TCP more robust against delay spikes and reduces thereby these problems

Ort, förlag, år, upplaga, sidor
Berlin: Encyclopedia of Global Archaeology/Springer Verlag, 2003. s. 214-223
Serie
Lecture Notes in Computer Science, ISSN 0302-9743 ; 2811
Nationell ämneskategori
Datavetenskap (datalogi)
Forskningsämne
Kommunikations- och beräkningssystem
Identifikatorer
URN: urn:nbn:se:ltu:diva-39982DOI: 10.1007/978-3-540-45188-4_22Scopus ID: 2-s2.0-35248885214Lokalt ID: ef0a9ae0-fc26-11de-bae5-000ea68e967bISBN: 978-3-540-20192-2 (tryckt)OAI: oai:DiVA.org:ltu-39982DiVA, id: diva2:1013502
Konferens
COST 263 International Workshop on Quality of Future Internet Services : 01/10/2003 - 02/10/2003
Anmärkning

Validerad; 2003; 20100108 (andbra)

Tillgänglig från: 2016-10-03 Skapad: 2016-10-03 Senast uppdaterad: 2022-04-22Bibliografiskt granskad

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Bodin, Ulf

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Totalt: 67 träffar
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