Internet connection with UMTS

Autor: Jahangir Dadkhah Chimeh, Mohammad Hakkak, Paeiz Azmi, Hamidreza Bakhshi
Rok vydání: 2009
Předmět:
Zdroj: annals of telecommunications - annales des télécommunications. 64:239-246
ISSN: 1958-9395
0003-4347
DOI: 10.1007/s12243-008-0078-6
Popis: Mobile telecommunication new services are based on data networks specially Internet. These services include http, telnet, ftp, Simple Mail Transfer Protocol, etc. Besides, we recognize a mobile network as a multiuser network. Transmission Control Protocol (TCP)/Internet Protocol which is sensitive to link congestion in wireline data links is also used in wireless networks. In order to improve the system performance, the TCP layer uses flow control and congestion control. Besides, radio link control (RLC) and medium access control sublayers have been introduced to compensate the deficiency of TCP layer in wireless environment. RLC has an important role in quality of service enhancement of the Universal Mobile Telecommunications System (UMTS). In this paper, we review the protocol stack of UMTS Terrestrial Radio Access Network which is based on Third-Generation Partnership Project. Then, we evaluate its layer 2 error control mechanisms and verify TCP over automatic repeat request error control mechanism and finally quality of service improvement results from it in fading channels.
Databáze: OpenAIRE
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