Topic
Handover
About: Handover is a research topic. Over the lifetime, 24219 publications have been published within this topic receiving 296416 citations. The topic is also known as: handoff.
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Patent•
28 Jun 1996TL;DR: In this article, a handover method for a mobile station in a multicellular communications system having a serving cell, a plurality of neighbouring cells and at least one control cell is presented.
Abstract: A method as shown in Figure for determining a handover for a mobile station in a multicellular communications system having a serving cell, a plurality of neighbouring cells and at least one control cell where the cells include at least one macrocell and a plurality of microcells. The method includes the steps of comparing the received signal of the control cell with a parameter value.
59 citations
Patent•
24 Oct 2007TL;DR: In this paper, the first base station router is deployed in a physical structure and the dimensions of the physical structure are estimated based on a statistical representation of at least one handover attempt associated with the first router.
Abstract: The present invention provides a method implemented in a base station router. One embodiment of the method includes determining a transmission power for a pilot signal transmitted by the base station router. The transmission power being determined based upon a number of mobile units that are camped on the base station router. Another embodiment of the method includes deploying the first base station router in a physical structure and estimating the dimensions of the physical structure based on a statistical representation of at least one handover attempt associated with the first base station router. Estimation of the dimensions of the physical structure occurs in response to deployment of the first base station router in the physical structure.
59 citations
TL;DR: In the scheme, the control information interaction for the mobile handoff is achieved in the link layer, and the routing of the control Information is automatically performed through the network topology, which saves the power and the delay time consumed by the routing establishment.
59 citations
15 May 2011
TL;DR: A fuzzy $Q-Learning algorithm is proposed to find the optimal set of fuzzy rules in an FLC for traffic balancing in GSM-EDGE Radio Access Network (GERAN) and results show that the optimized FLC provides a significant reduction in call blocking.
Abstract: In Self-Organizing Networks (SON), load balancing has been recognized as an effective means to increase network performance. In cellular networks, cell load balancing can be achieved by tuning handover parameters, for which a Fuzzy Logic Controller (FLC) usually provides good performance and usability. Operator experience can be used to define the behavior of the FLCs. However, such a knowledge is not always available and hence optimization techniques must be applied in the controller design. In this work, a fuzzy $Q$-Learning algorithm is proposed to find the optimal set of fuzzy rules in an FLC for traffic balancing in GSM-EDGE Radio Access Network (GERAN). Load balancing is performed by modifying handover margins. Simulation results show that the optimized FLC provides a significant reduction in call blocking.
59 citations
TL;DR: A simulative evaluation of Mobile IPv6 (MIPv6) via ns-2 for a scenario comprising up to three access routers and 30 mobile nodes that communicate in accordance with the IEEE 802.11 wireless LAN standard concludes that the design of a random mobility model that allows good control of the handoff rate is identified.
59 citations