The average downlink bandwidth of GPRS is about 25Kbps, while the bit-rate of typical streaming media is at least 100Kbps. It is an exigent job for GPRS business system to decrease bit-rate of streaming media. In this paper we propose a novel scheme, which can select decoding parameters (based on the special attribute of different kinds of streaming media program) automatically to fit the bandw...

Mobile telecommunication systems such as General Packet Radio Service (GPRS) and Universal Mobile Telecommunications System (UMTS) provide packetswitched service for mobile terminals. 3GPP Release 4 and Release 5 further offer packet voice over a GPRS/UMTS infrastructure so that IP based communications between mobile to mobile is expected to be one of the major traffic types in the future 3G Al...

A traffic model for GSM/GPRS, the hybrid radio resource allocation (HRRA) algorithm is evaluated. A dedicated number of GPRS channels plus idle periods between voice calls are used for GPRS data packet transfers. A simulator was developed in order to evaluate the HRRA algorithm, which provides a reasonable forecast on the voice blocking probability and on packet delay for a single cell system. ...

GPRS is the new packet-oriented data service for GSM. Soon it will be possible to take advantage of the features provided by GPRS for Internet Access like fast connection set-up, volumebased charging and staying on-line for long periods. For non-realtime Internet applications TCP is the applied transport protocol. Often it was suspected that GPRS introduces severe performance degradations for T...

Introduction: The General Packet Radio Service (GPRS) is a packetoriented extension to the Global System for Mobile Communications (GSM) that supplies higher data rates and sharing of radio resources. The performance of the Internet protocols in GPRS is dependent not only on the quality of the radio link, but also on buffering in the GPRS network. According to [1–3], the over-sized network buff...

In this paper, the Wireless Application Protocol (WAP) as one application of mobile data services is examined with the aim to give guidelines for the dimensioning of next generation mobile radio networks. The performance of WAP-based applications over GPRS is evaluated in scenarios where the GPRS radio resources are shared with conventional Internet applications like WWW and e-mail. Simulation ...

General packet radio service (GPRS) provides efficient access to the integrated services Internet from wireless networks. When the GPRS-attached mobile station attempts to send or receive data, a packet data protocol (PDP) context shall be established. The GPRS session management (SM) supports the PDP context handling, which consists of PDP context activation, deactivation, and modification pro...

This paper presents a discrete-event simulator for the General Packet Radio Service (GPRS) on the IP level. GPRS is a standard on packet data in GSM systems that will become commercially available by the end of this year. The simulator focuses on the communication over the radio interface, because it is one of the central aspects of GPRS. We study the correlation of GSM and GPRS users by a stat...

With reference to the General Packet Radio Service (GPRS), an extension of the Global System Mobile Communication (GSM) addressing packetoriented traffic, this paper contributes to the analysis on the service accomplishment level perceived by GPRS users. The proposed modeling approach builds separately the GPRS and user models; the focus is on the GPRS access random procedure on one side, and d...