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A resource reservation protocol (RSVP), a flexible and scalable receiver-oriented simplex protocol, is described. RSVP provides receiver-initiated reservations to accommodate heterogeneity among receivers as well as dynamic membership changes; separates the filters from the reservation, thus allowing channel changing behavior; supports a dynamic and robust(More)
Status of Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Abstract This memo presents two recommendations to the Internet community concerning measures to improve and preserve Internet performance. It presents a strong recommendation for testing,(More)
This paper introduces the concept of participatory sensing, which tasks everyday mobile devices, such as cellular phones, to form interactive, participatory sensor networks that enable public and professional users to gather, analyze and share local knowledge. An initial architecture to enhance data credibility, quality, privacy and 'shareability' in such(More)
Recently, increasing research attention has been directed toward wireless sensor networks: collections of small, low-power nodes, physically situated in the environment, that can intelligently deliver high-level sensing results to the user. As the community has moved into more complex design efforts—large-scale, long-lived systems that truly require(More)
Most power management protocols are packet-based and optimized for applications with mostly asynchronous (i.e. unexpected) traffic. We present AppSleep, a stream-oriented power management protocol for latency tolerant sensor network applications. For this class of applications, AppSleep demonstrates an over 3/spl times/ lifetime gain over B-MAC and SMAC.(More)
Since the inception of sensor networks, in-network processing has been touted as the enabling technology for long-lived deployments. Radio communication is the overriding consumer of energy in such networks. Therefore, data reduction before transmission, either by compression or feature extraction, will directly and significantly increase network lifetime.(More)
The sensor nodes in Wireless Sensor Network are battery powered devices which consumes energy during data transmission, processing, etc. The critical task in WSN is to deal with optimizing power consumption. One possible way to minimize power consumption is by the use of caching the data. Generally data transmission in WSN consumes more energy than(More)
In particular, these developments are a result of the emergence of standards for interoperability. Windowing systems, such as the X window system [Sch88], configurable graphical user interfaces, like the Tk/Tcl toolkit [Ous90, Ous91], and a widely available network application programming interfaces (API), such as Unix sockets [Sun88], all have given rise(More)
Along miles of riverbanks in Malaysia and Thailand there are enormous congregations of tidal fireflies blinking on and off in perfect unison Perfect means less than 10ms of one another " Today, we believe that they organize themselves—there is no lightning flash or leader. First, each firefly is rhythmic—they do not flash randomly. They have an internal(More)