The design of distributed, wireless, and embedded system is a tedious and error-prone process. Experiences from previous real-world wireless sensor network (WSN) deployments strongly indicate that it is vital to follo...
详细信息
The design of distributed, wireless, and embedded system is a tedious and error-prone process. Experiences from previous real-world wireless sensor network (WSN) deployments strongly indicate that it is vital to follow a systematic design approach to satisfy all design requirements including robustness and reliability. Such a design methodology needs to include an end-to-end testing methodology. The proposed framework for WSN testing allows to apply distributed unit testing concepts in the development process. The tool flow decreases test time and allows for monitoring the correctness of the implementation throughout the development process.
This paper describes the design and implementation of a high-reliability and low-power status monitoring protocol, e.g. for wireless alarm systems. The dual design approach followed consists of an in-depth device char...
详细信息
This paper describes the design and implementation of a high-reliability and low-power status monitoring protocol, e.g. for wireless alarm systems. The dual design approach followed consists of an in-depth device characterization with subsequent algorithm development. This allows to understand and leverage the correct design and implementation of the most critical components of the algorithms. The high-reliability status monitoring protocol operates based on monitoring windows with synchronous notification, subsequent acknowledgement rounds and periods of reduced activity, at regular intervals. This leads to deterministic and thus highly reliable operation of the status monitoring protocol implementation on the Tmote Sky platform.
We study optimal operating conditions for 160-Gb/s signals traversing a slow-light delay line based on parametric amplification. Six phase modulated formats are investigated, including CSRZ, PAP-CSRZ, GAP-CSRZ, RZ duo...
详细信息
This paper experimentally studies the accurate task scheduling in optical grid. The practical data transfer scenario and task execution scenario in optical grid have been investigated and modeled. Scheduling algorithm...
详细信息
ISBN:
(纸本)9781424418596
This paper experimentally studies the accurate task scheduling in optical grid. The practical data transfer scenario and task execution scenario in optical grid have been investigated and modeled. Scheduling algorithm OGEFT adopting the new realistic models shows significantly improved scheduling accuracy.
This application track paper describes the key technology advances achieved through a component-based design process, meeting right on track all key requirements of management systems for biometric data, such as data ...
详细信息
ISBN:
(纸本)1424407982
This application track paper describes the key technology advances achieved through a component-based design process, meeting right on track all key requirements of management systems for biometric data, such as data protection acts, flexible user and device handling, installation, and operation functions, and grouping functionality for users and devices according to dedicated office environmental needs.
Fourteen C+L-band synchronized multi-channel short pulse sources are generated based on XPM and FWM effects in nonlinear optical loop mirror. Walk-off effect is reduced effectively by using 10m high nonlinear dispersi...
详细信息
One task-flow scheduler has been designed to optimally allocate resources for a task-flow based Aircraft Collaborative Design Application in Optical Grid. This scheduler and application has been deployed on an Optical...
详细信息
ISBN:
(纸本)9783800730421
One task-flow scheduler has been designed to optimally allocate resources for a task-flow based Aircraft Collaborative Design Application in Optical Grid. This scheduler and application has been deployed on an Optical Grid testbed. The application's practical running demonstrates its feasibility.
One task-flow scheduler has been designed to optimally allocate resources for a task-flow based Aircraft Collaborative Design Application in Optical Grid. This scheduler and application has been deployed on an Optical...
详细信息
One task-flow scheduler has been designed to optimally allocate resources for a task-flow based Aircraft Collaborative Design Application in Optical Grid. This scheduler and application has been deployed on an Optical Grid testbed. The applications practical running demonstrates its feasibility.
MLS is a distributed location service to track the position of mobile nodes and to route messages between any two nodes. The lookup of nodes is achieved by searching in a hierarchy of pointers that each node maintains...
详细信息
ISBN:
(纸本)1595933689
MLS is a distributed location service to track the position of mobile nodes and to route messages between any two nodes. The lookup of nodes is achieved by searching in a hierarchy of pointers that each node maintains. We show that MLS has constant stretch for lookup requests. In contrast to previous work, we consider a concurrent setup where nodes are truly mobile and move even while messages are being routed towards them. We prove correctness and efficiency of MLS and determine the maximum speed at which the nodes might move, which is up to 1/15 of the routing speed. To the best of our knowledge, this is the first work that bounds the node speed, a necessity to prove the success of a lookup algorithm. We verified our theoretical results through extensive simulation and show that the average lookup stretch is around 6. Copyright 2006 ACM.
There are many asynchronous communication situations for which the prevalent continuous connectivity paradigm is not needed. communication with a fair delay tolerance may instead be provided by intermittent store-and-...
详细信息
ISBN:
(纸本)1595933085
There are many asynchronous communication situations for which the prevalent continuous connectivity paradigm is not needed. communication with a fair delay tolerance may instead be provided by intermittent store-and-forwarding between nodes. This paper proposes a design for an open, receiver-driven broadcasting system that relies on delay-tolerant forwarding of data chunks through mobility of wireless nodes. The system provides public broadcast channels, which can be openly used for both transmission and reception. We show by simulation under benchmark mobility models that a delay-tolerant broadcast channel has both a sufficiently high throughput and reach to be interesting as a competitive alternative to the regulated wireless broadcast channel. We also present the design of, and experiences with, a proof-of-concept prototype. Copyright 2006 ACM.
暂无评论