very low bit rate channel
Universal steganography model for low bit-rate speech codec
... communication channel. Firstly, they choose a low bit-rate speech codec, such as iSAC or iLBC (internet Low Bit Rate ...of low bit-rate speech codec ...
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Efficient Low Bit Rate Low Latency Channelization in DECT
... creating low bit-rate channels with- out the ine ffi ciency associated with the use of short bursts, is to increase the frame ...kbps channel is ...the low bit-rate channels ...
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Bit Error Rate Analysis for an OFDM System with Channel Estimation in a Nonlinear and Frequency Selective Fading Channel
... In this paper, we have presented closed-form BER expres- sions for OFDM with CE based on both TDM and FDM pilots in a nonlinear and frequency-selective fading channel. In our analysis the nonlinear noise is ...
12
Implementation of Low Bit Rate Vocoder for Speech Compression
... communication channel is a sensitive problem in military applications, low bit-rate speech compression methods are ...by very strict requirements in power consumption, size, and voltage ...
5
Very Low Bit Rate Video Coding by Combining H 264/AVC Standard and 2 D Discrete Wavelet Transform
... the low frequency components (the general structure) in contents of video frames, but it has difficul- ties in encoding the details of objects in video streams, like boundaries and ...at very low ...
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Channel estimation and bit error rate analysis of demodulate and forward wireless relay networks
... a low power device which when placed in a geographical arrangement can provide spatial diversity by acting as virtual antennas and relays information received from the source node ...
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Definition of Bit Error Rate on 16 channel DWDM system
... The first possibility how to get light to the multiplexer is to have several laser sources radiated on certain frequencies. Laser source has to be modulated by the modulation signal (information signal) and then lead to ...
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Low Bit Error Rate Based Communication by IEEE 802 15 4
... The Bluetooth protocol stack is illustrated [11]. The Bluetooth specific protocols are SDP, L2CAP, Link Manager, Baseband, and the Bluetooth Radio. Our primary modeling focus is on the characteristics of the RF, ...
5
Enhanced Adaptive Approach of Video Coding at Very Low Bit Rate Using MSPIHT Algorithm
... The grouped sub-blocks are framed representation within the sequence of image, since all the interleaved tree groups contain coefficients dispersed in the entire frame group. Then the stream is separated and formed as ...
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Quantum Cryptography : A Comprehensive Study Bhavesh Prajapati
... quantum channel, high bit error rate, low key distribution rate, photon detectors inaccuracy, sending of one single photon of light at a time, classical authentication and distance ...
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Channel estimation algorithms and bit error rate analysis of cognitive radio
... as low cost, adaptable wireless communication devices operated in real time using a processor or programmable silicon as hardware base and supported by a software architecture ...
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FMO-based H.264 frame layer rate control for low bit rate video transmission
... H.264/AVC rate control include adopting new frame complexity measures to enhance the model-based rate control scheme in [4] that uses ...the bit allocation. In [9], a rate control technique ...
11
Improved Adaptive Bit Error Rate Performance for Fading Channel Communication
... communication channel it has been shown that by using MIMO (Multiple Input Multiple Output) system architecture it is possible to increase that capacity ...is very likely beneficial since it enables support ...
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Facial Image Compression Based on Structured Codebooks in Overcomplete Domain
... The scheme presented in Figure 6 is used as a basic setup for this application. As it was discussed earlier, for the case of very-low-bit-rate regime, only one shape profile (simple step edge) ...
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Performance evaluation of OFDM using MIMO STTC for AWGN, RAYLEIGH, combined Rayleigh with AWGN and RICIAN channel for WIMAX and Bluetooth application
... communications, channel is a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio ...A channel is used to convey an information signal, from ...
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Optimum Bit Rate for Image Transmission over Underwater Acoustic Channel
... image bit-streams under a total broadcasting rate ...different bit stream groups outputed from a modified SPIHT [7] source ...(UWA) channel because it is inherently designed for image ...
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ANALYSIS OF DIFFERENT LENGTH OF SUB CHANNELS AND DIFFERENT ORDER OF MODULATION ON THE BASIS OF BIT ERROR RATE IN OFDM SYSTEM
... the bit information can be ...the bit error rate for different modulation orders and the different number of ...of bit error rate of different modulation ...average bit and frame ...
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Feature extraction for very low bit rate video coding
... A very basic aspect of the contents of almost all images is that it is a 3-D scene that is projected on to the 2-D image. This knowledge can be used in compression schemes in several ways. One consequence is that ...
45
GWO Based Optimal Channel Estimation Technique for Large Scale Mimo in LTE Network
... covariance-aided channel estimation framework method was developed by Yin, ...empowering low-rate coordination among compartments amid phase of channel ...other channel estimation ...
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Satellite Image Compression using Discrete wavelet Transform
... the bit rate for compressing satellite Images. The variable bit rate is obtained using variable thresholding of wavelet ...for low bitrate applications in terms of ...
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