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On the move with TCP in current and future mobile networks
Spanien.
Karlstads universitet.
Spanien.
Högskolan Kristianstad, Sektionen för hälsa och samhälle, Avdelningen för Design och datavetenskap.
2017 (Engelska)Ingår i: Proceedings of the 8th International Conference on the Network of the Future, London, United Kingdom, November 2017, 2017Konferensbidrag, Publicerat paper (Övrigt vetenskapligt)
Abstract [en]

Mobile wireless networks constitute an indispensable part of the global Internet, and with TCP the dominating transport protocol on the Internet, it is vital that TCP works equally well over these networks as over wired ones. This paper identifies the performance dependencies by analyzing the responsiveness of TCP NewReno and TCP CUBIC when subject to bandwidth variations related to movements in different directions. The presented evaluation complements previous studies on 4G mobile networks in two important ways: It primarily focuses on the behavior of the TCP congestion control in medium- to high-velocity mobility scenarios, and it not only considers the current 4G mobile networks, but also low latency configurations that move towards the overall potential delays in 5G networks. The paper suggests that while both CUBIC and NewReno give similar goodput in scenarios where the radio channel continuously degrades, CUBIC gives a significantly better goodput in scenarios where the radio channel quality continuously increases. This is due to CUBIC probing more aggressively for additional bandwidth. Important for the design of 5G networks, the obtained results also demonstrate that very low latencies are capable of equalizing the goodput performance of different congestion control algorithms. Only in low latency scenarios that combine both large fluctuations of available bandwidths and a mobility pattern in which the radio channel quality continuously increases can some performance differences be noticed.

Ort, förlag, år, upplaga, sidor
2017.
Nyckelord [en]
Mobile network, 4G, 5G, TCP, congestion control, NewReno, CUBIC, latency, throughput
Nationell ämneskategori
Telekommunikation Datavetenskap (datalogi)
Identifikatorer
URN: urn:nbn:se:hkr:diva-17201ISI: 000427145800011OAI: oai:DiVA.org:hkr-17201DiVA, id: diva2:1138173
Konferens
The 8th International Conference on the Network of the Future
Tillgänglig från: 2017-09-04 Skapad: 2017-09-04 Senast uppdaterad: 2018-04-03Bibliografiskt granskad

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Arvidsson, Åke
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Avdelningen för Design och datavetenskap
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Totalt: 190 träffar
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