TCP behaviour in LTE: Impact of flow start-up and mobility
2016 (English)In: Wireless and Mobile Networking Conference (WMNC), 2016 9th IFIP, IEEE Communications Society, 2016, 73-80 p.Conference paper (Refereed)
Mobile internet has been widely adopted and it is expected to rise to almost 4 billion users by 2020. Despite the research effort dedicated to the enhancement of its performance, there still exists a gap in the understanding of how TCP and its many variants work over LTE. To this end, this paper evaluates the extent to which five common TCP variants, CUBIC, NewReno,Westwood+, Illinois, and CAIA Delay Gradient (CDG), are able to utilise available radio resources under hard conditions, such as during start-up and in mobile scenarios at different speeds. The paper suggests that CUBIC, due to its Hybrid Slow-Start mechanism, enters congestion avoidance prematurely, and thus experiences a prolonged start-up phase. As a result, it is unable to efficiently utilise radio resources during shorter transmissionsessions. Besides, CUBIC, Illinois and NewReno, i.e., the loss-based TCP implementations, offer better throughput, and are able to better utilise available resources during mobility than Westwood+ and CDG - the delay-based variants do.
Place, publisher, year, edition, pages
IEEE Communications Society, 2016. 73-80 p.
Data models, Delays, Mobile communication, Mobile computing, Throughput, Wireless communication;Hybrid Slow-Start;LTE;Slow-Start;, TCP adaptability, mobility
IdentifiersURN: urn:nbn:se:hkr:diva-15849DOI: 10.1109/WMNC.2016.7543932ISI: 000383221300010ISBN: 978-1-4673-8746-0 (print)ISBN: 978-1-4673-8747-7 (print)OAI: oai:DiVA.org:hkr-15849DiVA: diva2:956557
9th IFIP Wireless and Mobile Networking Conference (WMNC), Colmar