نتایج جستجو برای: variable bit rate
تعداد نتایج: 1221873 فیلتر نتایج به سال:
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...
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...
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 ...
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...
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...
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...
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...
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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