The proceedings contain 65 papers. The topics discussed include: a priority management scheme for high rate wireless personal area network;a generic software partitioning algorithm for pervasive computing;a new method...
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ISBN:
(纸本)3540371893
The proceedings contain 65 papers. The topics discussed include: a priority management scheme for high rate wireless personal area network;a generic software partitioning algorithm for pervasive computing;a new methodology of QoS evaluation and service selection for ubiquitous computing;energy aware multimedia messaging services across networks and across devices for mobile users;a memory efficient algorithm for packet classification;path selection of reliable data delivery in wireless sensor networks;an efficient and robust routing protocol for data aggregation;a density control algorithm for surveillance sensor networks;upper bound on operational lifetime of ultra wide band sensor network;a genetic algorithm on multi-sensor networks lifetime optimization;dependency-based dynamic component reconfiguration for wireless computingsystems;and accusation resolution using security metrology.
Large scale wireless ad-hoc networks of computers, sensors, PDAs etc. (i.e. nodes) are revolutionizing connectivity and leading to a paradigm shift from centralized systems to highly distributed and dynamic environmen...
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ISBN:
(纸本)0769526799
Large scale wireless ad-hoc networks of computers, sensors, PDAs etc. (i.e. nodes) are revolutionizing connectivity and leading to a paradigm shift from centralized systems to highly distributed and dynamic environments. A plethora of routing algorithms have been proposed for the network path discovery ranging from broadcasting/flooding-based approaches to those using global positioning systems (GPS). In this paper we propose a novel decentralized infrastructure that self-organizes wireless devices in an ad-hoc network, where each node has one or more virtual coordinates through which both message routing and data management occur without reliance on either flooding/broadcasting operations or GPS. The resulting ad-hoc network does not suffer from the dead-end problem, which happens in geographic-based routing when a node is unable to locate a neighbor closer to the destination than itself. The multi-dimensional data management capability will be described showing, as an example, how the location service reduces to a simple query, like for any other data type. Extensive performance analysis and experiments have been conducted and the results compared to GPSR, which is considered the most efficient routing solution not using broadcast operations. Our approach shows significant performance gains.
A distributed dynamic collaboration approach built in peer-to-peer (P2P) architecture is presented to acquire, transmit and process information in wireless sensor networks (WSNs). Several practically feasible measures...
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The proceedings contain 57 paper. The topics discussed include: saturated throughput analysis of ieee 802.11e using two-dimensional Markov chain model;localized coverage boundary detection for wireless sensor networks...
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ISBN:
(纸本)1595935371
The proceedings contain 57 paper. The topics discussed include: saturated throughput analysis of ieee 802.11e using two-dimensional Markov chain model;localized coverage boundary detection for wireless sensor networks;algorithm design for base station placement problems in sensor networks;distributed cooperative rate adaptation for energy efficiency in ieee 802.11-based multi-hop networks;multi-constrained soft-QoS provisioning in wireless sensor networks;clustering and load balancing in hybrid sensor networks with mobile cluster heads;a link performance model for multi-user wireless fading channels;an optimization framework for balancing throughput and fairness in wireless networks with QoS support;energy-balancing multipath routing protocol for wireless sensor networks;cluster-based routing protocol for mobile sensor networks;and stability-based multi-objective clustering in mobile ad hoc networks.
In this paper, we address the problem of MAC address assignment in wireless sensor networks. A novel scheme for MAC address assignment is proposed to reduce the overhead. We model the problem from the game theoretical...
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In a wireless sensor network, the regions in which a large percentage of sensor nodes are not available may form holes in the network. In holes, sensor nodes may be depleted or not dense enough to communicate with oth...
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A sensor network consists of a large number of distributed wireless sensors which are equipped with low power wireless transceivers. Network lifetime, scalability, and load balancing are important requirements for man...
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ISBN:
(纸本)1595933069
A sensor network consists of a large number of distributed wireless sensors which are equipped with low power wireless transceivers. Network lifetime, scalability, and load balancing are important requirements for many data gathering sensor network applications. Network clustering is an effective approach for achieving these goals wherein sensors are grouped into multiple clusters. Multihop data transmission may provide efficient energy conservation further. A sensor in a cluster may work as a cluster head for data gathering, aggregation, and report to the base station (BS). These tasks can also be performed by distinct sensors in the same cluster. In this paper, we clarify some characteristics of multi-hop data transmission. Furthermore, we propose a new data gathering approach for single-hop transmission wherein both the data gathering and the aggregation are performed by the same sensor in a cluster but the report to the BS may be done by a different sensor. The simulation results show that the proposed algorithm achieves better performance than other existing algorithms. Copyright 2006 ACM.
There is a growing excitement about the potential application of large scale sensor networks in diverse applications such as precision agriculture, geophysical and environment monitoring, remote health care, and secur...
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A distributedsensor network with mobility provides an ideal system platform for surveillance and for search and rescue applications. We consider a system design consisting of a set of autonomous robots communicating ...
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ISBN:
(纸本)3540380914
A distributedsensor network with mobility provides an ideal system platform for surveillance and for search and rescue applications. We consider a system design consisting of a set of autonomous robots communicating with each other and with a base station to provide image and other sensor data. A robot-mounted sensor which detects interesting information coordinates with other mobile robots in its vicinity to stream its data back to the base station in a robust and energy-efficient manner. The system is partitioned into twin sub-networks in such a way that any transmitting sensor will pair itself with another nearby node to cooperatively transmit its data in a multiple-input, multiple-output (MIMO) fashion. At the same time, other robots in the system will cooperatively position themselves so that the overall link quality is maximized and the total transmission energy in minimized. We efficiently simulate the system's behavior using the Transaction Level Modeling (TLM) capability of SystemC. The simulation results demonstrate the utility of our design and provide insights into performance of the system.
Secure location verification is a recently stated problem that has a number of practical applications. The problem requires a wireless sensor network to confirm that a potentially malicious prover is located in a desi...
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ISBN:
(纸本)3540273247
Secure location verification is a recently stated problem that has a number of practical applications. The problem requires a wireless sensor network to confirm that a potentially malicious prover is located in a designated area. The original solution to the problem, as well as solutions to related problems, exploits the difference between propagation speeds of radio and sound waves to estimate the position of the prover. In this paper, we propose a solution that leverages the broadcast nature of the radio signal emitted by the prover and the distributed topology of the network. The idea is to separate the functions of the sensors. Some sensors are placed such that they receive the signal from the prover if it is inside the protected area. The others are positioned so that they can only receive the signal from the prover outside the area. Hence, the latter sensors reject the prover if they hear its signal. Our solution is versatile and it deals with provers using either omni-directional or directional propagation of radio signals without requiring any special hardware besides a radio transceiver. We estimate the bounds on the number of sensors required to protect the areas of various shapes and extend our solution to handle complex radio signal propagation, optimize sensor placement, and operate without precise topology information.
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