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Recent rapid scale out of high performance computing systems has rapidly and continuously increased the scale and complexity of the interconnects. As a result, current static and over-provisioned interconnects are becoming cost-ineffective. Against this background, we have been working on the integration of network programmability into the interconnect control, based on the idea that dynamically controlling...
Appropriate cluster head selection process in hierarchical cluster based routing algorithms is vital to make the wireless sensor networks energy efficient. This paper suggests a hybrid cluster head selection method with the parameters Location centrality and Nodes' lingering energy on the fixed clusters. The simulation outcome illustrates that the proposed algorithm is good at load balancing with...
In dynamic networks, if the nodes are not scattered uniformly in area, to guarantee the coverage is difficult. However, we cannot use uniformly deployment strategy all the time. Uniformly scattering the nodes increases unbalanced traffic pattern in dynamic networks. Clustering seems a good solution for most problems of dynamic networks. However, there is another serious problem. Cluster heads (CHs)...
The single message ferry routing scheme works well in the small scale clustered DTNs (Delay/Disruption Tolerant Networks). However, as the increasing of the network scale, this scheme will lead to high delay. To solve this problem, a hierachical multiple ferries routing scheme (HMFRS) was proposed in this paper. In this scheme, a message ferry and a ferry access point are deployed in each DTN cluster,...
Clustering routing algorithm is an important and widely used method, which can prolong the lifecycle of WSN. Existing clustering algorithm due to the randomness of selecting the cluster head, it is inevitable that the agreement exists choosing cluster head unreasonable, node energy consumption unbalanced. To address the above issues, this paper presents an improved clustering routing algorithm LEACH-KED...
This paper presents a novel pheromone update strategy for improving the clustering results of ant colony optimization (ACO). The proposed algorithm is motivated by the observation that most of the ACOs only keep track of the promising foraging information, which has the potential to lead to better solutions than all the other search directions in the pheromone table. This eventually makes the search...
ZACA-EEC (Zigbee Ant Colony Algorithm Energy Efficient Cluster) routing protocol is proposed to replace AODV in Zigbee with the aim of increasing reliability for mine equipment monitoring in this paper, which can prolong the lifetime of network remarkably. Taking hydraulic support as an example, the distribution of monitoring nodes can be simplified as chain hierarchy topology, then Free-space model...
LEACH is one classical protocol in wireless sensor network, which is a clustering-based protocol with good performance. In this paper, an improved routing algorithm based on LEACH protocol will be proposed, which involves cluster head choosing, multi-hop routing and the building of its path. Simulation in MATLAB, an improved routing algorithm has higher energy utilizing rate, and it helps prolong...
We propose a common vector space to describe documents and users in order to create a social network based on affinities, and explore epidemic algorithms to perform searches based on recommendations. Furthermore, we propose using Fuzzy Distributed Tables to help the localization of isolated, affine clusters.
In wireless sensor networks, the data-centric sensing task focuses more on the data reliability. In this paper, a reliable clustering algorithm RCVC (reliable clustering using virtual cluster-head) is proposed. It provides multipath for nodes in the network by using a set of redundant cluster-heads which are marked with a unique virtual identification. When the active cluster-heads fail, according...
The Wireless Sensor Network technology has been used widely; however the limited energy resource is one of the bottlenecks for its application. To enhance the robustness and accuracy of the information which is obtained by the entire network, certain redundancy exists in the data collected from the sensor node and thus data fusion processing is needed to reduce the redundant information. Firstly the...
With the deployment of sensor network applications there is lot of breakthrough in digital or smart sensor designs. These smart sensors have a dedicated processor which allows interfacing to many sensors which measure ambient readings of temperature, pressure and humidity of the environment. These sensors once calibrated they function independently running using a self-powered battery which operates...
Though the security of wireless sensor networks (WSNs) has been studied deeply, the inside attacks still are very difficult to defend. The inside attacks are not detectable with only the classic cryptographic techniques and the attacks mainly include two types of attack: exceptional message attack and abnormal behavior attack. In this paper, we present an inside attacker detection approach, which...
This paper addressed the difficulties and challenges facing the wireless sensor networks on the battlefield cased by misdirection attack. WSNs is often vulnerable to attackerpsilas either in the routing or forwarding data and attempt to consume a lot of energy by sending a large quantity of useless packets. The main objective of the intruder is to misdirect the incoming messages to increase the latency,...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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