End-to-end key performance indicators in cellular networks
Master thesis
Permanent lenke
http://hdl.handle.net/11250/137130Utgivelsesdato
2006Metadata
Vis full innførselSamlinger
Sammendrag
The continuing growth of customers taking advantage of the available services means
greater load on the cellular network. Optimization is the key to ensure that the
network can provide a reasonable level of service-quality. Service providers want to
examine their network and be assured that their network is performing well. Teleca
Wireless Solutions is a company that does this for service providers, and an end-toend
test tool could be proven useful to examine the cellular networks overall
performance from an end users point of view. To ensure that one has a tool that does
this in an appropriate way, one must ensure, the application is based on testing the
right key performance indicators for relevant services. Such services may be popular
services like FTP and WEB.
In this thesis, we have researched what affects the end users performance and
performed practical end-to-end performance tests in cellular networks. Our goal is to
define which key performance indicators are affecting the network’s performance at
different network layers and for different services. We have paid special attendance to
the high latency of the wireless links, and the delay introduced with the radio access
bearer establishment. By measurements we have shown that the 3rd generation cellular
network UMTS not surprisingly outperforms EDGE regarding commonly used
services like HTTP/WEB and FTP. We have discovered that while TCP throughput is
good when transferring large files over FTP, the high latency of the wireless link
makes the HTTP performance bad compared to potential TCP throughput.
Our work has concluded with which key performance indicators an end-to-end test
application should measure for services as HTTP and FTP, to give an overall view of
the cellular network’s performance. We have proposed enhancements to an already
existing end-to-end test tool.
Beskrivelse
Masteroppgave i informasjons- og kommunikasjonsteknologi 2006 - Høgskolen i Agder, Grimstad
Utgiver
Høgskolen i AgderAgder University College