Resource management policies in GPRS systems

نویسندگان

  • Michela Meo
  • Marco Ajmone Marsan
چکیده

In this paper we consider the problem of resource management in GSM/GPRS cellular networks offering not only mobile telephony services, but also data services for the wireless access to the Internet. In particular, we investigate channel allocation policies that can provide a good tradeoff between the QoS guaranteed to voice and data services end users, considering three different alternatives, and developing analytical techniques for the assessment of their relative merits. The first channel allocation policy, voice priority, gives priority to voice in the access to radio channels; we show that this policy cannot provide acceptable performance to data services, since when all the channels are busy with voice connections, data services perceive long intervals of service interruption. The second channel allocation policy is called R-reservation; it statically reserves a fixed number of channels to data services, thus drastically improving their performance, but subtracting resources from voice users, even when these are not needed for data, thus inducing an unnecessary performance degradation for voice services. The third channel allocation policy is called dynamic reservation; as the name implies, it dynamically allocates channels to data when necessary, using the information about the queue length of GPRS data units within the base station. A threshold on the queue length is used in order to decide when channels must be allocated to data. Numerical results show that the dynamic reservation channel allocation policy can provide effective performance tradeoffs for data and voice services, with the additional advantage of being easily managed through the setting of the threshold value. © 2003 Elsevier B.V. All rights reserved.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Resource Allocation Algorithms for GPRS Network Performance Improvement During Congested Periods

The evolution of European mobile communication systems towards the third generation (3G) is based on GSM (Global System for Mobile communications) [1]. A first step in the evolution is the General Packet Radio Service (GPRS) [2], [3], which truly supports packet switched data services. Our goal is to investigate the efficiency of different algorithms used for resource allocation in data transfe...

متن کامل

Adaptive Radio Resource Management for GSM/GPRS Networks

Recent years have seen a dramatic increase in demand for mobile communication services and with the introduction of 2.5G services such as GPRS, this trend is expected to increase further. The highly dynamic and bursty nature of packet switched services such as GPRS will require a much more flexible method of radio resource management so as to maximise system resources compared to currently empl...

متن کامل

Radio Resource Management in GPRS with Quality of Service

In wireless data networks, Radio Resource Management (RRM) strategies are an important issue for supporting Quality of Service (QoS). This paper evaluates the performance of two innovative scheduling disciplines that allow the subscribers to transmit data with guaranteed QoS in a packet switched radio network based on the General Packet Radio Service (GPRS). In particular, the analysed strategi...

متن کامل

Mobile Location Update using Distance Method

General Packet Radio Service (GPRS) is a complex data network which upgrades current second generation GSM networks, offering true high-speed internet (IP) and network connectivity over existing GSM cellular networks. The increasing population of mobile users leads to congestion problems in these systems, and motivates the development of more efficient management schemes. This project deals wit...

متن کامل

Channel allocation for GPRS

Based on the GSM radio architecture, general packet radio service (GPRS) provides users data connections with variable data rates and high bandwidth efficiency. In GPRS service, allocation of physical channels is flexible, i.e., multiple channels can be allocated to a user. In this paper, we propose four algorithms for the GPRS radio resource allocation: fixed resource allocation (FRA), dynamic...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Perform. Eval.

دوره 56  شماره 

صفحات  -

تاریخ انتشار 2004