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Handover: a Tool for Optimization of Wireless Networks

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Proceedings of the First European Teletraffic Seminar: an initiative to strengthen collaboration on Network Design and Performance (ETS 2011), стр. 80--84. Poznań, Poland, ASART STUDIO Agnieszka Chwalisz, (февраля 2011)

Аннотация

The growth of mobile devices equipped with wireless network interface on the market puts researchers focus on the new area of wireless connection management. In this paper we introduce an approach of wireless network management with handovers which occurs when user is moving through the area that is covered with more than one wireless network. The task of user’s assignment to the wireless network is considered in this paper. There have been two main tasks formulated: local optimization, where user chooses the network to connect and global one, where the network management system picks users in order to maximize users satisfaction. The users have to be assigned with proper amount of communicational resources in every moment of the passing of considered geographical area. I this paper we propose three heuristic algorithms of user QoS-constrained assignment to networks. In two algorithms the user makes decision basing on his knowledge about network and his mobile device state and in the third algorithm, the networks management system decides which users to connect. The evaluation of proposed algorithms is done by means of computer simulation.

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