The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Automation of radio network management is a key determination to work reduction for wireless operators. Self configured and self optimized network is a major feature for Long term Evolution (LTE). This paper proposes a procedure for self optimization and continuous update procedure of GSM neighbor cell list in E-UTRAN system. This method makes use of mobile measurement to update the neighbor cell...
Self-organization is a key factor for the future evolution of mobile networks, especially for introduction of the new radio standard LTE. Reasons are the increasing complexity, heterogeneity and management effort. Based on an overview about the current state of the art, the self-organization potential for enabling real plug and play functionality, automatic network optimization, improved end-to-end...
Cell outage management is a functionality aiming to automatically detect and mitigate outages that occur in radio networks due to unexpected failures. We envisage that future radio networks autonomously detect an outage based on measurements, from e.g., user equipment and base stations, and alter the configuration of surrounding radio base stations in order to compensate for the outage-induced coverage...
GSM/UMTS mobile networks deployed by operators are not static, but they are continuously evolving. They need periodic adjustments, expansion and optimization. Subscribers demand good quality in the services they use and pay for, as well as new innovative services that usually require higher speeds and bit rate. Being able to use an automatic optimization tool represents a major advantage for an operator,...
This paper considers distributed protocol design for joint sub-carrier, transmission scheduling and power management in uplink/downlink multi-cellular OFDMA wireless networks. The optimal solution to this problem is hard to achieve, both in theory and in practice. We propose a fully decentralized resource allocation scheme combining decomposition methods for convex optimization with a strategic non-cooperative...
Interference management is essential toward improving spectral efficiency in wireless networks. During the last decade inter-antenna interference management via multiple-input multiple output (MIMO) transmission has attracted attention for its capability to enhance link spectral efficiency. In a cellular environment, however, inter-cell interference imposes another limit on link spectral efficiency...
Nowadays it is typical for large cities that IP and cellular network traffic is dramatically growing all the time. At the same time, it is extremely expensive or sometimes even impossible to add new optical fiber links (due to municipal regulation, lack of space, required construction and installation time, etc.) that would resolve the network overload problem. Currently there are two main approaches...
Cellular/WLAN integration has been widely considered to be an economical and effective solution for wireless service providers to provision high bandwidth services to meet the increasing demand for data-oriented applications. Nevertheless, technological and operational differences between these two types of networks result in substantial challenges in the management of cellular/WLAN integration. In...
In GSM-EDGE radio access network (GERAN), the assignment of base stations to base station controllers has a strong impact on network performance. In this paper, an exact method is proposed to improve an existing assignment of base stations to base station controllers. The aim is to minimize the number of handovers between base station controllers given a maximum number of base stations re-allocations...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.