نتایج جستجو برای: variable bit rate

تعداد نتایج: 1221873  

Journal: :IEEE Transactions on Wireless Communications 2005

2000
Gang WU Yoshihiro HASE Masugi INOUE

Developments in new frequency bands for wireless communications make a broadband channel for new services possible. Great effort has been made researching and developing broadband wireless communication in the 60-GHz millimeterwave band since the early 1990s. In this paper, we design an ATM (asynchronous transfer mode)-based indoor millimeterwave wireless local area network (WLAN) that supports...

2003
Peter Schelkens Yiannis Andreopoulos Joeri Barbarien Tom Clerckx Fabio Verdicchio Adrian Munteanu Mihaela van der Schaar

Video transmission over variable-bandwidth networks requires instantaneous bit-rate adaptation at the server site to provide an acceptable decoding quality. For this purpose, recent developments in video coding aim at providing a fully embedded bit-stream with seamless adaptation capabilities in bit-rate, frame-rate and resolution. A new promising technology in this context is wavelet-based vid...

2006
P. K. Suri K. D. Sharma Brijesh Kumar

In an ATM network, the network performance depends on many parameters, including the architecture of the network and the performance of switching elements. The current paper discusses, the performance improvement by modifying the switch fabric and packet forwarding, using simulation concepts. A switch consists of some input buffers and an algorithm, to select the cells waiting in the queue, to ...

Journal: :Computer Communications 2000
Andrea Baiocchi Nicola Blefari-Melazzi Marco Listanti

This work refers to an ATM satellite system, supporting different QoS classes via the standard ATM traffic categories, i.e. Constant Bit Rate (CBR), Variable Bit Rate (VBR), Available Bit Rate (ABR) and Unspecified Bit Rate (UBR). The focus of this work is on ABR (i.e. closed loop control) and the central issue is to find trade-offs between a high ABR throughput and processing burden/buffer spa...

1996
Paul Bocheck Shih-Fu Chang

We present our recent work on content based video (CBV) traffic modeling of variable bit rate (VBR) sources. CBV approach differs from previous works in that it is not based only on matching of various statistics of the original source, but rather on modeling and mapping its visual content into the corresponding bit rate. We show that CBV model is fully compatible with current and future compre...

Background: The present study was conducted to quantify the relationships between bone drilling process parameters(i.e., feed rate, resting time, exit rate, and drill bit diameter) and drilling outcome parameters (i.e., thrust force andmaximum temperature).Methods: This study utilized 10-cm cortical bovine samples to evaluate the effects of four independent parameters,in...

2001
Robert Trost Barry Tsuji Ljiljana Trajkovic Steve Whitmore

Today's telecommunications needs call for faster and more reliable networks. Optical transmission has allowed great advances in creating faster and more reliable global communications networks. Most optical networks are based on the SONET (North American) and SDH (International) standards. For my thesis, I have designed, implemented, and tested a bit-error rate monitoring circuit, compliant wit...

Journal: :CoRR 2013
Cewei Cui Zhe Dang Thomas R. Fischer

A program can be considered as a device that generates discrete time signals, where a signal is an execution. Shannon information rate, or bit rate, of the signals may not be uniformly distributed. When the program is specified by a finite state transition system, algorithms are provided in identifying information-rich components. For a black-box program that has a partial specification or does...

2017

Preliminary -The BERTScope BSX-series Bit Error Rate Tester introduces a receiver test platform capable of supporting emerging Gen4 standards and beyond. With the addition of powerful data processing and internal Tx equalization, the BERTScope supports protocol-based handshaking and synchronization with your device under test (DUT), including interactive link training at data rates up to 32 Gb/...

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