The sharing of resources between different users and different services is a key concept of radio resources dimensioning in GSM/GPRS networks. In this paper we present dimensioning rules based on traffic evaluation and quality of service level for GSM/GPRS users, focused on two radio resources allocation strategies: CP (Complete Partitioning) and PP( Partial Partitioning).The quality of service...

This paper studies the performance of the three retransmission mechanisms (i.e., RLC/MAC, LLC and TCP) in a General Packet Radio Service (GPRS) network accessing the Internet. This assessment is done through the end-to-end performance evaluation of Internet applications such as HTTP and FTP over GPRS. A simulation platform including client Mobile Stations, Base Station Subsystems, GPRS Support ...

The Wireless Application Protocol (WAP) as one application of mobile data services is examined with the aim to provide 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 results for ...

UMTS is one step ahead from the 2.5G network GPRS and supports faster data rates with wide coverage area. GPRS and UMTS are already deployed in many countries but seamless handover between GPRS and UMTS still remains as a stumbling block for the service providers to fulfill the continuously increasing customer demand for internet and data access in the IP-based wireless network and to maintain ...

The Global System for Mobile Communications (GSM) Phase 2+ standard specifies a new type of packet data service called General Packet Radio Service (GPRS). GPRS allows the dynamic allocation of bandwidth resources. Wireless channels are allocated to a mobile terminal based on its traffic demands. Thus results in better resource utilization compared to the circuit-based data services. In general...

General packet radio service (GPRS) is designed for transmitting packet data and supposed to take its radio resource from the pool of channels unused by GSM voice services. Obviously, the introduction of GPRS affects on the voice services. In this paper the outage probability of non-frequency hopping and frequency hopping systems with different frequency reuse factor has been calculated in ord...

While the quality of service (QoS) profiles for a number of general packet radio service (GPRS) classes has been specified [1] by ETSI, how QoS management is provided by means of traffic scheduling, traffic shaping, and connection admission control, in a GPRS network is an implementation issue that is attracting significant current research interest. This paper presents an evaluation of several...

The growth of the mobile network system of which the cellular systems like Global System Mobile Communications (GSM) and Personal Digital Cellular (PDC) are representative and the IP network attracts worldwide attention. The IP network access through the mobile data network system is required strongly to use the useful IP services anytime and anywhere. Therefore on the mobile data network syste...

A block coprocessor for user data rate improvements to GPRS coding scheme 4. It is advisable to refer to the publisher's version if you intend to cite from the work. A block coprocessor for user data rate improvements to GPRS coding scheme 4. Abstract The General Packet Radio Service (GPRS) has been developed to allow packet data to be transported efficiently over an existing circuit switched r...

سیستم حمل‌ونقل ریلی از تعامل مجموعه‌ای تجهیزات و عملیات تشکیل‌ شده است که توانایی ظرفیت یک در بار مسافر را تعیین می‌کند. بدین‌منظور، محاسبة پیش‌بینی نحوة تغییرات آن مهم شناخت آن‌ کمک شایانی به ارتقای سطح بهره‌برداری شبکة روش‌های گوناگونی برای وجود دارد با توجه نوع شبکه شیوة استفاده این روش‌ها، می‌توان آنها بهره گرفت. ظرفیت، توانمندی‌های سیستم‌های اطلاعات مکانی می‌شود تحت وب، وضعیت ظرفیتی عملیات...