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After a decade of extensive research on application-specific wireless sensor networks (WSNs), the recent development of information and communication technologies make it practical to realize software-defined sensor networks (SDSNs), which are able to adapt to various application requirements and to fully explore the resources of WSNs. In SDSNs, wireless sensor nodes can be dynamically reprogrammed...
To support a group of mobile sinks in wireless sensor networks, region-based routing protocols by using a single entity nature have been proposed. They periodically register the region location information of the mobile sink group and exploit flooding for the data delivery within the region. However, they have a data delivery failure problem for some sinks due to the asynchrony between the registered...
Networks-on-Chip (NoCs for short) are known as the most scalable and reliable on-chip communication architectures for multi-core SoCs with tens to hundreds IP cores. Proper mapping the IP cores on NoC tiles (or assigning threads to cores in chip multiprocessors) can reduce end-to-end delay and energy consumption. While almost all previous works on mapping consider higher priority for the application's...
Mobile Ad Hoc Networks (MANET) are a peer-to-peer communication network that can be used to transmit data using a mobile or wireless link without the support of fixed infrastructure. A literature survey highlighted that the key characteristics of efficient MANET nodes are reputation value, residual battery level and energy consumption. Various MANET algorithms and routing techniques such as location...
Network-wide broadcasting and multicasting are two important routing schemes used in group communications. In network-wide broadcasting, generated packets at the source node are distributed to all nodes in the network, while multicasting delivers the packets only to a subset of the nodes by creating and maintaining a data dissemination structure. Due to the overhead in multicasting, in certain situations,...
An energy-balanced multicast routing algorithm EBMR in wireless sensor networks (WSNs) is proposed. The objective of EMBR algorithm is to improve the energy efficiency and extend the network lifetime in multicast. To achieve this goal, the energy consumption model in WSNs is analyzed and an energy-constrained metric for multicast forwarder selecting is studied. Then the framework of EBMR algorithm...
In allusion to the network characteristic of wireless sensor network and QoS constraints, such as, surplus energy of nodes, time lapse, time lapse wobble, bandwidth and so on. This paper take the maximal surplus energy for the first measurement, simultaneity considering the factors including bandwidth of nodes, time lapse, time lapse wobble and so on, has brought forward multi-QoS constrained multicast...
The wireless ad hoc networks (WANET) is an open system that is constituted by fix or mobile nodes. In WANET, each node can be a router or a host. Considering that most nodes may use battery as its energy, it is necessary to improve on energy-saving method. Based on the MAODV protocol, we bring forward a new method called PPEF that uses both hops and energy consumption level of each node together for...
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