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A 4G Link Level Emulator for Transport Protocol Evaluation
Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. Karlstad University, Division for Information Technology. (Distributed Systems and Communication Research Group)ORCID iD: 0000-0003-0368-9221
Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. Karlstad University, Division for Information Technology. (Distributed Systems and Communication Research Group)
Signaler och System, Uppsala universitet.
2004 (English)In: Proceedings of The Second Swedish National Computer Networking Workshop (SNCNW), 2004, 19-23 p.Conference paper, (Refereed)
Abstract [en]

This paper presents a wireless link and networkemulator, based upon the "Wireless IP" 4G system proposalfrom Uppsala University and partners. In wireless fading down-links (base to terminals) link-level frames are scheduled andthe transmission is adapted on a fast time scale. With fastlink adaptation and fast link level retransmission, the fading properties of wireless links can to a large extent be counteractedat the physical and link layers. A purpose of the emulatoris to investigate the resulting interaction with transport layer protocols. The emulator is built on Internet technologies, andis installed as a gateway between communicating hosts. The paper gives an overview of the emulator design, and presentspreliminary experiments with three different TCP variants. The results illustrate the functionality of the emulator by showing theeffect of changing link layer parameters on the different TCP variants.

Place, publisher, year, edition, pages
2004. 19-23 p.
National Category
Computer Systems
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kau:diva-12181OAI: oai:DiVA.org:kau-12181DiVA: diva2:509559
Conference
Swedish National Computer Networking Workshop (SNCNW), Karlstad
Projects
Wireless IP
Available from: 2012-03-13 Created: 2012-03-13 Last updated: 2014-09-10Bibliographically approved

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