We consider sensor networks where energy is a limited resource so that energy consumption must be minimized while satisfying given throughput requirements. Moreover, energy consumption must take into account both the transmission energy and the circuit processing energy for short-range communications. In this context, we analyze the energy-efficient joint routing, scheduling, and link adaptatio...

Due to new business models and technological advances, dynamic vehicle routing is gaining increasing interest. Solving dynamic vehicle routing problems is challenging, since it requires optimization in two directions. First, as a reaction to newly revealed information, current routing plans need to be reoptimized. Second, uncertain future changes of information need to be anticipated by explici...

In this paper ANT colony optimization algorithm has been proposed to solve FPGA routing in FPGA design architecture with minimum umbers of tracks per channel. In our method geometric FPGA routing task is transformed into a Boolean satisfiability (SAT) equation with the property that any assignment of input variables that satisfies the equation specifies a valid route. The satisfiability equatio...

In this paper, a new hybrid routing protocol is presented for low power Wireless Sensor Networks (WSNs). The new system uses an integrated piezoelectric energy harvester to increase the network lifetime. Power dissipation is one of the most important factors affecting lifetime of a WSN. An innovative cluster head selection technique using Cuckoo optimization algorithm has been used in the desig...

The vehicle routing problem with the capacity constraints was considered in this paper. It is quite difficult to achieve an optimal solution with traditional optimization methods by reason of the high computational complexity for large-scale problems. Consequently, new heuristic or metaheuristic approaches have been developed to solve this problem. In this paper, we constructed a new heuristic ...

A sensor network is an adhoc network defined under the energy constraints. As the communication is performed over the network, some amount of energy is lost by each participating nodes. One of the effective network operations is routing. Route optimization in sensor network depends on different routing elements. In this paper, these routing elements are discussed and explored. The paper has als...

Wireless Sensor Networks have become an important research topic in last year. WSN is a collection of tiny, large number of densely deployed sensor node; these sensor nodes are smart, effective which is very powerful and versatile networking where traditional wired and wireless networking is unable to deploy. These sensor nodes have limited transmission range, processing and storage capabilitie...

In this paper, we study the interconnect layout optimization problem under a higher-order RLC model to optimize not only delay, but also waveform, for interconnects with non-monotone signal response in the context of MCM global routing. We propose a unified approach that considers topology optimization and waveform optimization simultaneously. Using a new incremental moment computation algorith...