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We present an energy-efficient on-chip reconfigurable computing architecture, the so-called OLUT, which is an optical core implementation of a lookup table. It offers significant improvement with respect to optical directed logic architectures, through allowing the use of wavelength division multiplexing (WDM) for computation parallelism. We performed a design space exploration that elucidates the...
With the increasing number of wireless mobile devices, the possibility of mobile communications without network infrastructure is becoming a reality. The decentralized mobile social network (MSN) is a paradigm where nodes can move freely and organize themselves arbitrarily. Therefore, the key challenge is to find routes that can provide satisfactory delivery performance and low average end-to-end...
Vehicular ad hoc networks (VANETs) are regarded as essential ways for vehicles to share information with each other. As communication range is limited, multiple relay nodes are often required for establishing the multi-hop routing path between the source node and the destination node. Dependability of such routing path may be compromised due to different motion states of vehicles. In this paper, we...
BACR is a new hierarchical routing protocol based on LEACH designed for WSN. It introduced energy-involved voting and back-off announcement to control the number of cluster-heads to vary within a small range and evenly locate the cluster-heads thus to prolong the network lifetime. This work also employed the technology of cluster reappointment to minimize the energy consumed in cluster set-up phase...
Recently, researches on hierarchical clustering routing protocol in wireless sensor networks have been widely carried on. These protocols mostly are about unique sink node. In large wireless sensor networks the above protocols are not scalable. In this paper, we proposed a multi-level protocol between cluster heads and more sink nodes, which organizes sensor nodes with LEACH clustering algorithm....
A heuristic algorithm based on token-ring is proposed for Group Multicast Routing and Wavelength Assignment (GM-RWA) in OVPN and the simulation result shows its performance in the number of wavelength channels used.
Recently, in order to improve the energy efficiency of WSN(Wireless Sensor Network), widely research have been carried on. But, up to the present, all presented methods are based on direct communication between CH (cluster head) and sink node, and based on the assumption that node can intelligent regulate signal energy according to the distance between nodes. So it's hard to implement those methods...
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