Here a scheme is presented for key pre-distribution in wireless sensor networks. A transversal design is considered to construct a (v, b, r, k) configuration. Then properly chosen blocks are merged to form sensor node...
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ISBN:
(纸本)3540307060
Here a scheme is presented for key pre-distribution in wireless sensor networks. A transversal design is considered to construct a (v, b, r, k) configuration. Then properly chosen blocks are merged to form sensor nodes such that there is no intra-node common key. The choice of blocks in merging is currently made heuristically in a randomized manner. The scheme is called hybrid as a combinatorial design followed by a heuristic is applied. Detailed analysis is presented regarding the number of nodes, number of keys per nodes and the probability that a link gets affected if certain number of nodes are compromised. It is also argued how the scheme compares favourably with the state of the art proposals. Towards the end we also present a result to find out the lower bound on the number of nodes given a certain combinatorial design.
Mostsensor network research to date has targeted ad hoc wireless networks of closely co-located, resource-constrained, scalar sensor motes. Such work has tended to overlook the potential importance of wide-area senso...
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sensor networks consisting of nodes with limited battery power and wireless communications is among the fastest growing technologies. There are many challenges in implementation of such systems: energy dissipation and...
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ISBN:
(纸本)3540308563
sensor networks consisting of nodes with limited battery power and wireless communications is among the fastest growing technologies. There are many challenges in implementation of such systems: energy dissipation and data gathering being one of them. Gathering sensed information in an energy efficient manner is critical to operate the sensor network for a long period of time. While cluster-based data collection is efficient at energy and bandwidth, it's difficult to ensure balanced energy depletion on all cluster-members after a longtime run. In this paper we propose a new distributed cluster-based data gathering algorithm using PSO to optimize clustering process. The election of cluster-heads need synthetically consider the state information including location and energy reserved about candidates and their neighbors. Our preliminary simulation results show that the proposed algorithm balances the energy dissipation over the whole network thus prolongs the network lifetime.
This paper1 proposes a workflow intelligence and quality improvement framework maximizing the workflow traceability and rediscoverability by analyzing the total sequences of the control-path perspective of a workflow ...
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Amorphous computing promises a novel approach with massively distributedsystems. Research in the field hasn't yet produced any formal methodology for design of such system. Paintable computing architecture provid...
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ISBN:
(纸本)953713802X
Amorphous computing promises a novel approach with massively distributedsystems. Research in the field hasn't yet produced any formal methodology for design of such system. Paintable computing architecture provides an interesting testbed for process self-assembly and together with wireless sensor networks, presents a platform whose goal is to tightly integrate with its environment. Such a platform could combine the best of both technologies while running applications composed of fragments resembling classical software agents capable of mobility. This article presents an introduction to changes that are necessary to have all these similar computing approaches unite.
The required reliability in applications of a distributed computer system is continuous service for 24 hours a day, 7 days a week. However, computer failures due to exhaustion of operating system resources, data corru...
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Power consumption becomes a primary issue since wireless devices are often powered by batteries. This paper presents IEE-MAC, an improved energy efficient MAC protocol designed for ieee 802.11-Based wireless Ad Hoc ne...
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ISBN:
(纸本)3540308563
Power consumption becomes a primary issue since wireless devices are often powered by batteries. This paper presents IEE-MAC, an improved energy efficient MAC protocol designed for ieee 802.11-Based wireless Ad Hoc networks. In TEE-MAC, every node constructs a scheduling table in the distributed way by exchanging control information in ATIM window. Every node will only wake up to transmit or receive data frames and then enter doze state following the scheduling table to conserve energy consumption. Using this mechanism, IEE-MAC can eliminate the collision, overhearing, and idle listening. Moreover, IEE-MAC can adjust the size of ATIM window adaptively according to the actual traffic load in order to reduce unnecessary energy consumption without degrading the throughput of the network. Simulation results show that our protocol attains the better energy efficiency as well as throughput than other protocols in the literature.
As the buildings become intelligent with the development of information communication, many facilities have appeared. Usually, each facility performed independent functions, but with the development of the internet, t...
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Group based transactions are becoming common via handhelds. Single key based systems may not be able to meet various security requirements. In this paper, we propose a threshold signature scheme based on Pedersen dist...
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