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This paper proposes an algorithm that uses predefined weights to create broadcast routes for a WirelessHART network. The network topology is represented by a graph, and the algorithm uses information of the devices present in the network to build the broadcast graph. At each iteration of the algorithm, a device is selected and then added to the broadcast solution graph. A cost function determines...
Development of semiconductor process makes devices have smaller area, lower power, and reduced wire connections. To achieve this purpose, macro placement plays an important role in the design flow. In this paper, we present a routability-driven macro placement algorithm considering pins location to optimized scaled routing congestion and macro placement area. By considering pins location, reclassify...
Due to the rapid growth in scale and complexity of information networks, self-organizing systems have been focused on for realizing new network control architectures that have high scalability, adaptability, and robustness. However, in self-organizing systems, the uncertainty (incompleteness, ambiguity, and dynamicity) of information observable for components in the system can lead to the slow adaptation...
Relief materials are transported to the disaster areas after natural disasters. This paper describes the substitution and collocation relationships among relief materials, and finds the maximum of the number of victims could be supplied by them. On this basis, this paper optimizes the loading density of relief materials by establishing and solving corresponding quadratic programming problems. The...
The efficient and timely distribution of freight goods is critical for supporting the demands of modern urban areas. Optimum freight ensures the survival and development of urban areas. In the contemporary logistic there are two main distribution strategies: direct distribution and multi-echelon distribution. In the direct distribution, means of transport, starting from the main distribution center,...
In this paper, we study the behavior of a large number N of parallel loss servers operating under a randomized power-of-d routing scheme for the arrivals. Such models are of importance in several cloud architectures that offer IaaS (Infrastructure as a Service). The probabilistic behavior of such modelshas previously been analyzed for jobs with exponential holding times. However, in most realistic...
Provision of reliable traffic data could cause a reduction of the traffic problem. In a previous paper, the authors developed the core of RIMAC, an information system that allows the introduction of new and reliable sources of information from camcorders, traffic lights or mobile phones. With these new data sources, RIMAC is able to provide many more realistic reports. This paper describes the development...
In this paper, in order to increase the scalability of the communication network, a three-level method of hierarchical coordination routing in multi-area network is proposed, which is based on the principle of goal coordination. The method is based on the decomposition representation of the flow-based routing model and it includes three levels of the calculation hierarchy: at the zero level, the routing...
Traffic congestion, the main constituent of vehicular extrinsic flow resistance, has been an important factor in the design of routing algorithms. There are important intrinsic factors that can also aid these algorithms. This study proposes a new vehicular intrinsic flow resistance metric referred as sinuousness. To obtain this metric several scenarios are designed. Each scenario has a unique topology...
Fire may cause people in the building to be scared, distracted. In that case, some evacuation systems may help people to leave the building safely. This paper proposes a technique to explore a wayfinding during fire. Wayfinding depends on building type. We also investigated the possible influence of smoke, light and distance on route determination for fire evacuation. When the fire occurs, the system...
Failing to make use of multi-path advantages in data center networks (DCNs) has confined accessible resources and increased the possibility of congestion. In this paper, we have presented a new algorithm for traffic engineering (TE) in a modular mode. In the proposed algorithm, the less loaded paths for conduction of current are selected with regard to the present conditions as soon as a current is...
Energy consumption problem is considered an extremely important problem that faces the Wireless Sensor Networks (WSNs). For this reason, a lot of efficient energy protocols have been developed in order to reduce the energy consumption, as well as to prolong the lifetime of the sensor networks. The DMHT-LEACH protocol is one of these protocols. It proposes a dynamic technique for facilitating the data...
A modeling framework is developed that enables analysis and design of cognitive radio technologies for military satellite communication networks. The main components of the model are: 1) a multi-tiered queueing network that captures data transmission within the network; 2) access and routing models for primary and cognitive users, abstracted as mixed supervisory and bottom-up controls. A complete...
MANETs are potential wireless network, where mobile nodes are connected dynamically in ad hoc basis. This unique characteristic attracted many promising applications and the one among is battlefield communication. The war troops at the edge of the network do not have any computing infrastructure for communication. Therefore MANET plays a vital role in battlefield communication. Since MANET is openness...
There are some shortcomings in the delay tolerant network (DTN) routing algorithm, such as low message delivery rate, low network efficiency and high cost in the satellite network. In order to solve the problem above, this paper proposes a limited copy algorithm MPWLC based on service probability. In MPWLC, not only is the number of copies limited, but the storage resources of the satellite are also...
Most of the times Wireless Sensor Networks (WSNs) operate in hostile and unattended network environments, which makes the nodes vulnerable to node misbehaviour attacks. The applicability of conventional security methods, such as authentication, encryption and cryptography, to counter node misbehaviour attacks is debatable due to their incapability and involved cost. Trust aware secure mechanisms provide...
In this paper, a systematic approach to finding an optimized switching sequence for a current steering DAC to reduce the static non-linearity is presented. A methodology for calculating the error patterns of a particular process is explained. Also, a novel algorithm is proposed to find an INL bounded optimized switching sequence for any gradient profile which can even compensate for the linear gradient...
The paper deals with the contact center modeling with emphasis on the optimal number of agents. The contact center belongs to the queueing systems and its mathematical model can be described by various important parameters. The Erlang C formula tends to be suitable tool for the modeling of QoS parameters of contact centers. In our paper, we propose two parameters: downtime and administrative task...
In recent years, FPGA is becoming popular among researchers and big companies who apply FPGA to high performance computing and deep learning as it has advantages over GPU in many aspects like performance, flexible programmability, cost, etc. However, the key stage placement in FPGA design flow remains to be one of the most challenging problem as the designs become larger and more complex. In this...
Recent work on granular computing has introduced new notions which apply to research network structure. In this paper, we present a study of a multiple level of granularity for network. The first problem is how to model the multiple level network based on granular structure. We then propose a method of constructing a multiple level network. Compared with flooded searching path network, the proposed...
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