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Network Characterization using Active Measurements for Small Cell Networks
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab). (CCS)
2013 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Due to the rapid growth of mobile networks, network operators need to expand their coverage and capacity. Addressing these two needs is challenging.

One factor is the requirement for cost-efficient transport via heterogeneous networks. In order to achieve this goal, Internet connectivity is considered a cost-efficient transport option by many operators for small cell backhaul.

This thesis project investigates if a small cell network's requirements can be fulfilled by utilizing Internet connectivity for backhaul. In order to answer this question several measurements have been made to assess different aspect of live networks and compare them with the network operator's requirements. Different measurement protocols are utilized to evaluate some of the key network characteristics, such as throughput, jitter, packet loss, and delay. These measurement protocols are described in this thesis. Moreover, improving the bandwidth available in real-time (BART) measurement method was one of the main achievements of this thesis project.

Evaluation of the measurement results indicates that fiber based access together with Internet connectivity would be the best and cheapest solution as a backhaul for small cell network in comparison with almost all of the other types of broadband access technologies. It should be noted that asymmetric digital subscriber line (ADSL) and cable- TV access networks proved to be unable to meet the requirements for small cell backhaul.

This project gives a clear picture of the current broadband access network infrastructure's attributes and highlights the possibility of reducing backhaul costs by using broadband Internet connectivity as a backhaul transport option.

Abstract [sv]

Dagens snabbt ökande mobilia datatrafik gör att nätverksoperatörerna behöver utöka både täckning och kapacitet hos sina nät. Att tillgodose båda dessa behov är en utmaning.

Ett krav är kostnadseffektiva transporter via heterogena nätverk. För att uppfylla detta utreder många operatörer möjligheten att använda Internet-baserad returtrafik (backhaul) för småceller.

Detta examensarbete utreder huruvida kraven för småceller kan uppfyllas genom att utnyttja en Internet-baserad returtrafik. För att kunna besvara denna fråga har flera mätningar utförts i syfte att bedöma olika aspekter av verkliga nätverk och jämföra dem med nätverksoperatörens krav. Olika mätprotokoll utnyttjas för att utvärdera några av de viktigaste egenskaperna hos nätet, såsom hastighet, jitter, paketförluster och förseningar. Dessa mätprotokoll beskrivs i dettta examensarbete. Dessutom/Vidare har metoden "bandbredd tillgänglig för realtidsmätningar" bandwidth available in real-time (BART) förbättrats.

Utvärdering av mätresultaten visar att fiberbaserad access tillsammans med Internetanslutning är den bästa och billigaste returtrafiklösningen för småcellsnätverk för nästan alla olika typerna av bredbandsteknik, förutom för (asymmetric digital subscriber line) ADSL och kabelaccessnät.

Detta projekt ger en tydlig bild av den aktuella nätinfrastrukturens egenskaper och möjligheten att reducera returtrafik-kostnaderna genom att använd bredbandsanslutning med Internet som transport kostnader.

Place, publisher, year, edition, pages
2013. , xiv,84 p.
Series
Trita-ICT-EX, 2013:204
Keyword [en]
broadband access networks, backhaul, real-time measurements, small cell network
Keyword [sv]
bredbandsteknik, returtrafik, realtidsmätningar, småceller
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-129070OAI: oai:DiVA.org:kth-129070DiVA: diva2:649865
Presentation
2013-08-27, Seminar room Motala, Isafjordsgatan 22, Kista, 13:00 (English)
Supervisors
Examiners
Available from: 2013-09-30 Created: 2013-09-19 Last updated: 2013-09-30Bibliographically approved

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