low bit rate channel
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 and bit error rate analysis of demodulate and forward wireless relay networks
... presents channel estimation techniques for demodulate and forward (DeF) wireless relay networks (WRN) using least squares (LS) algorithm and its ...variants. Channel estimation is a significant issue in ...
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The Effect Of Convolution Code Structural Property To Reduce The Bit Error Rate In Underwater Acoustic Channel
... spread channel, the multipath profile of the channel is measured using Orthogonal Signal Division Multiplexing (OSDM) [14] without an interpolation ...and low order DFE [16] are used for the ...
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Improved Adaptive Bit Error Rate Performance for Fading Channel Communication
... the bit error rate performance characteristics of equalizers namely, ZF,SD,ML MMSE ,DFE, and MLSE ...at low BERs, both the MLSE algorithm and the DFE algorithm suffer from error ...the channel ...
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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 ...on low bit rate speech coding technology, mainly in ...
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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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Bit Error Rate Analysis for an OFDM System with Channel Estimation in a Nonlinear and Frequency Selective Fading Channel
... frequency-selective channel has not been ...the channel estimation error for both TDM and FDM pilot CE are evaluated with computer simulation in Figure ...the channel estimation error values are ...
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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, ...
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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
... DECT channel (possibly being used by another RFP) will also translate into the passband of the filter, as shown in Figure ...the channel edge is translated only by 432 kHz, and the undesired subband from ...
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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 ...
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Satellite Image Compression using Discrete wavelet Transform
... The image compression is most important task to be accomplished on order to save storage capacity, several image compression methods are explored in [13] mostly based on spatial features. G.Kwallace in [1] proposed a ...
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Lightning Effects On Wireless Network Performances
... In the experiment, 1000 bits of speech signal were transmitted by using FSK modulation technique and resulting the total bit loss for those current values is 25 bits equal percentage loss of 0.0025% out of ...
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GiLBCSteg: VoIP Steganography Utilizing the Internet Low Bit Rate Codec
... than the samples that had been altered, although most of the time the difference between the two stayed within 5 dB, as shown in Figure 2. The difference in dB level did exceed 5 dB at some points, with the difference in ...
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GWO Based Optimal Channel Estimation Technique for Large Scale Mimo in LTE Network
... of channel coefficients to be estimated during doubly selective (DS) channel estimation which was a challenging task which leads to pilot overhead in the ...DS channel estimation structure which ...
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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
... complex channel gain. Depending upon the availability of the channel information, different types of demodulation or decoding can be used to recover the information ...
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SECURE VOICE COMMUNICATION USING LOW BIT RATE SYSTEM FOR GSM USERS
... are bit rate and speech quality. The bit rate is the measure of how the speech signal has been ...and bit rate are in direct conflict with each ...the bit rate, the ...
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Bit Error Rate Analysis of OFDM System with Channel Estimation Error in Rayleigh Fading Channels
... the channel frequency response. Any imperfection in channel estimation degrades its bit error rate (BER) ...of channel estimation error on BER performance of the ...the channel ...
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Smart Compression for Telemedicine
... However, if the CDR value changes from 500 to 250 bps, based on Table 1, the quality of ECG signals from the input channel of 2, 4, and 14 (i.e. record numbers: 104, 111, 231) will not be preserved after ...
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