HASN is a hierarchical routing protocol for heterogeneous sensornetworks, optimized via cross-layer designs to save sensor's power and improve reliability. There are two kinds of nodes in heterogeneous sensor net...
详细信息
ISBN:
(纸本)0819464856
HASN is a hierarchical routing protocol for heterogeneous sensornetworks, optimized via cross-layer designs to save sensor's power and improve reliability. There are two kinds of nodes in heterogeneous sensornetworks: normal sensor and header node that has more powerful battery and higher performance antenna. A header and sensors in its radio transmitting range compose a cluster. The header takes charge of data collection and data aggregation in its cluster. In a cluster, the communication is unsymmetrical. From the header to sensors is directly reachable, but from sensors to their header needs multi-hop. In this paper, a new dynamic address assignment method is introduced for large number of sensors automatically. A mathematics model of energy optimum relay tree is designed, which can guarantee the minimum energy cost forwarding and relay load balance. We give an approximation algorithm to resolve the model. A centralized scheduling management is proposed to avoid collisions completely in a cluster. We also introduce a mechanism to depress data redundancy.
Determining the location of objects or people in a smart space is one of the prerequisites enabling smart applications. The ideal location system makes use of existing infrastructure such as wireless LAN or cellular c...
详细信息
The paper reports on recent developments and challenges in reliable multicast communication, with special focus on reliable multicast communication at the application layer. The foundation of reliable multicast commun...
详细信息
ISBN:
(纸本)9781424408566
The paper reports on recent developments and challenges in reliable multicast communication, with special focus on reliable multicast communication at the application layer. The foundation of reliable multicast communication is given by several components, which are multicast communication, congestion control and error control. Our paper is providing a survey of these mechanisms in multicast environments.
Robotic sensornetworks (RSNs), which consist of networks of sensors placed on mobile robots, are being increasingly used for environment monitoring applications. In particular, a lot of work has been done on simultan...
详细信息
ISBN:
(纸本)9781628410532
Robotic sensornetworks (RSNs), which consist of networks of sensors placed on mobile robots, are being increasingly used for environment monitoring applications. In particular, a lot of work has been done on simultaneous localization and mapping of the robots, and optimal sensor placement for environment state estimation(1). The deployment of RSNs, however, remains challenging in harsh environments where the RSNs have to deal with significant perturbations in the forms of wind gusts, turbulent water flows, sand storms, or blizzards that disrupt inter-robot communication and individual robot stability. Hence, there is a need to be able to control such perturbations and bring the networks to desirable states with stable nodes (robots) and minimal operational performance (environment sensing). Recent work has demonstrated the feasibility of controlling the non-linear dynamics in other communicationnetworks like emergency management systems and power grids by introducing compensatory perturbations to restore network stability and operation(2). In this paper, we develop a computational framework to investigate the usefulness of this approach for RSNs in marine environments. Preliminary analysis shows promising performance and identifies bounds on the original perturbations within which it is possible to control the networks.
Integrated photonics technologies are reviewed in application to access network transceivers. Low manufacturing cost and high volume scalability, achievable through monolithic integration by means of semiconductor waf...
详细信息
ISBN:
(纸本)9780978921736
Integrated photonics technologies are reviewed in application to access network transceivers. Low manufacturing cost and high volume scalability, achievable through monolithic integration by means of semiconductor wafer fabrication techniques, identified as enablers for mass deployment.
Wireless sensornetworks generally have three kinds of objects: sensor nodes, sinks, and users that send queries and receive data via the sinks. In addition, the user and the sinks are mostly connected to each other b...
详细信息
ISBN:
(纸本)97830540726050
Wireless sensornetworks generally have three kinds of objects: sensor nodes, sinks, and users that send queries and receive data via the sinks. In addition, the user and the sinks are mostly connected to each other by infrastructure networks. The users, however, should receive the data from the sinks through multi-hop communications between disseminating sensor nodes if such users move into the sensornetworks without infrastructure networks. To support mobile users, previous work has studied various user mobility models. Nevertheless, such approaches are not compatible with the existing data-centric routing algorithms, and it is difficult for the mobile users to gather data efficiently from sensor nodes due to their mobility. To improve the shortcomings, we propose a view of mobility and propose a model to support a user mobility that is independent of sinks. The proposed model, finally, is evaluated by simulation of delivery ratio, latency, and network lifetime.
This paper presents a simulation prototype design for wireless sensornetworks (WSNs). It allows the performance evaluation (e.g., packet delivery rate, transmission latency and energy consumption) at high level, but ...
详细信息
Intrusion defection is an efficient method against attacks in computer network and system. Most intrusion detection system for sensornetworks and ad hoc networks are based on the cooperative of intrusion detection ag...
详细信息
ISBN:
(纸本)9780769530482
Intrusion defection is an efficient method against attacks in computer network and system. Most intrusion detection system for sensornetworks and ad hoc networks are based on the cooperative of intrusion detection agents and suffered from a computation and memory usage overload. In this paper, we address this problem by proposing two algorithms to optimal select and activate the intrusion detection agents for sensornetworks.
Detecting and tracking boundaries of a physical process by a large-scale sensornetworks are often desirable or even required in various applications. The first step in the detection and tracking procedures is edge de...
详细信息
ISBN:
(纸本)9780769530482
Detecting and tracking boundaries of a physical process by a large-scale sensornetworks are often desirable or even required in various applications. The first step in the detection and tracking procedures is edge detection. Most of the edge detection schemes proposed for sensornetworks require information on sensor locations. Also, quantitative measures by which performance of an edge detector for sensornetworks can be analyzed have not been available. In this paper edge detectors which do not require the absolute or relative location of each sensor node are proposed along with a set of metrics used for performance analysis. Detailed performance analysis results obtained through simulation, varying parameters such as sensor density, communication range, and noise level, are provided.
A novel approach to the future hybrid communication network capable to support the traffic of different kind, e.g. real time and packet traffic and wireless signal in a single transparent network is proposed. The prop...
详细信息
ISBN:
(纸本)9781424411498
A novel approach to the future hybrid communication network capable to support the traffic of different kind, e.g. real time and packet traffic and wireless signal in a single transparent network is proposed. The proposed model combines different technologies as connection and connectionless networking, optical cable and wireless (microwave/ millimeter wave or optical wireless) and it is suitable for a variety of purposes and services in order to achieve global broadband networking.
暂无评论