نتایج جستجو برای: balancing loss
تعداد نتایج: 477872 فیلتر نتایج به سال:
In wireless networks, mobile node frequently performs handoff. The handoff may occur due to many factors like signal strength, load balancing, number of connections, network status and frequencies engaged etc. This frequent handoff may disturb the services and create few milliseconds of interruption. This delay and number of unwanted handoffs should be minimized for break less performance. Incr...
In this paper we address issues related to the definition of effective metrics for the application of load-balancing techniques inside providers’ core networks. We will present an original approach to the problem of assigning appropriate weights to the network links. The main contribution of our work resides in having devised a solution relying on a cost function which depends on link utilizati...
About 100 km east of Rome, in the central Apennine Mountains, a critically endangered population of ∼50 brown bears live in complete isolation. Mating outside this population is prevented by several 100 km of bear-free territories. We exploited this natural experiment to better understand the gene and genomic consequences of surviving at extremely small population size. We found that brown bear...
This paper considers the daily assignment of newborn infant patients to nurses in a hospital. The objective is to balance the workload of the nurses, while satisfying a variety of side constraints. Prior work proposed a MIP model for this problem, which unfortunately did not scale to large instances and only approximated the objective function, since minimizing the variance cannot be expressed ...
In wireless sensor networks, many routing algorithms are designed to implement energy-efficient mechanisms. Among those, some focus on maximising an important performance index called network lifetime, which is the number of messages successfully delivered in the network before a failure. In this paper, we propose a new online algorithm taking the goal of prolonging network lifetime. When makin...
Abstract This chapter uses an ant colony meta-heuristic to optimally load balance code division multiple access micro-cellular mobile communication systems. Load balancing is achieved by assigning each micro-cell to a sector. The cost function considers handoff cost and blocked calls cost, while the sectorization must meet a minimum level of compactness. The problem is formulated as a routing p...
In a game (N, 〈Si〉, 〈ui〉) players are interested in maximizing ui. In this section we consider games where players incur costs, and hence their goal is to minimize costs. These games are represented as (N, 〈Si〉, 〈ci〉) where ci is the cost function of player i. Recall that we defined a potential function to prove that a load balancing game had a pure Nash equilibrium. In this section we define a...
Active cell balancing is a more energy-efficient way of cells in series comparing to passive balancing. To further improve the performance an active system, optimal control approach can be applied optimise system indexes. This paper proposes controller for bidirectional clamp forward converter with synchronous rectifier (ACFC-SR) based cell-to-external-storage concurrently speed and energy effi...
Network lifetime maximization is a critical problem for longterm data collection in wireless sensor networks. For large-scale networks, distributed and self-adaptive solutions are highly desired. In this paper, we investigate how to optimize the network lifetime by a localized method. Specifically, the network lifetime maximization problem is converted to a localized cost-balancing problem with...
front end یک رادار باند (f=9.4ghz)x به صورت (microwave integrated circuits)mic طراحی، ساخته و اندازه گیری شد . تقویت کننده کم نویز مدار یک تقویت کننده بالانس می باشد که ترانزیستورهای آن gaasmesfet به صورت چپ می باشند. بهره تقویت کننده در فرکانس 9.4ghz برابر 13db و عدد نویز آن 3db اندازه گیری می باشد . میکسر مدار، یک میکسر دیودی به صورت تک بالانس بوده و هایبرید 180 درجه آن از نوع حلقه (ratrace) ...
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