This letter studies the effect of node mobility on application-level QoS of audio-video multipath streams in wireless ad hoc networks. The audio-video streams are transmitted with the MultiPath streaming scheme with Media Synchronization control (MPMS), which was previously proposed by the authors. We perform computer simulation with a grid topology network of IEEE 802.11b including two mobile ...

Sensor networks, in addition to stock tickers, network event logs, scientific simulations, credit card transactional flows, and surveillance video cameras, output a continuous flow of data, called a data stream. Mining data from a network of sensors provides insight into the health and reliability of a system. This process is known as data stream mining. This paper examines the issues associate...

Long lived audio streams, such as music broadcasts, and small differences in clock rates lead to buffer underflow or overflow events in receiving applications that manifest themselves as audible interruptions. We present a low complexity algorithm for detecting clock skew in network audio applications that function with local clocks and in the absence of a synchronization mechanism. A companion...

The IP networking industry is defining ways to differentiate service levels and provide contracted quality of service. Much of the work, such as multi-protocol label switching, is moving toward traffic engineering models for aggregate streams that closely parallel those of ATM networks. A general architecture, similar to that used for ATM connections, is suggested for the traffic management of ...

Corruption in the health sector has been a “dirty secret” in the health policy and international development community, but recent global activities point to a day when it will no longer be neglected as a key determinant of health. To further explore next steps forward, this commentary applies the Kingdon’s multiple-streams framework (MSF) to assess what opportunities are available to mobilize ...

A Flexible Data Mining Architecture for Monitoring Data Streams by Ahmet Bulut Data streams are ubiquitous: performance measurements in business process management, faults and alarms in network traffic management, transactions in retail chains, ATM operations in banks, log records generated by web servers, and sensor network data are some specific examples. In almost all of these applications, ...

When multiple video streams share a wireless network, careful rate allocation is needed to prevent congestion, as well as to balance the video qualities among the competing streams. In this paper, we present a unified optimization framework for video rate allocation over wireless networks. Our framework applies to both unicast and multicast sessions, and accommodates both scalable and nonscalab...

In order to utilize network resources eeectively while providing satisfactory quality of service (QoS) to all users on the ATM network, it is necessary to control users' traac at the network edges. ATM traac may be controlled at the User-Network Interface (UNI) and Inter-Network Interface (INI) based on the traac contracts. We propose an ATM shaping multiplexer along with its implementation arc...

The characteristic of data stream is that it has a huge size and its data change continually, which needs to be responded quickly, since the times of query is limited. The continuous query and data stream approximate query model are introduced in this paper. Then, the query optimization of data stream and traditional database are compared such as k-anonymity methods, are designed for static dat...

We consider the problem of distributed continuous data delivery services in an overlay network of heterogeneous nodes. Each node in the system can be a source for any number of data streams and at the same time be a consumer node that is receiving streams sourced at other nodes. A consumer node may define a filter on a source stream such that only the desired portion of the stream is delivered,...