Authors:
Jahangir Dadkhah Chimeh
1
;
Mohammad Hakkak
2
;
Hamidreza Bakhshi
3
and
Paeiz Azmi
2
Affiliations:
1
Islamic Azad University Science and Research Branch, Iran, Islamic Republic of
;
2
Tarbiat Modares University, Iran, Islamic Republic of
;
3
Shahed University, Iran, Islamic Republic of
Keyword(s):
TCP/ARQ, UMTS, fading channel.
Related
Ontology
Subjects/Areas/Topics:
Mobile Multimedia (GSM, GPRS, RF, Wi-Fi,…)
;
Multimedia
;
Multimedia and Communications
;
Telecommunications
Abstract:
Mobile telecommunication new services are based on data networks specially Internet. These services include http, telnet, ftp, Simple Mail Transfer Protocol (SMTP), etc. Besides we recognize a mobile network as a multi-user network. Transmission Control Protocol/Internet Protocol (TCP/IP) 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) has been introduced to compensate the deficiency of TCP layer in wireless environment. MAC and RLC have important roles in quality of service improvement of UMTS. In this paper we verify TCP over Automatic Repeat reQuest (ARQ) error control mechanism and finally quality of service improvement results from it in the fading channels.