turbo coded OFDM
Turbo Coded OFDM with Large Number of Subcarriers
... as OFDM presented excellent toler- ance of channel fading and noise signals, the evolvement in terms of speed and reliability was consequent, because only a small stream of information is lost due to noise ...
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Reducing Peak to Average Power Ratio of a Turbo Coded OFDM
... Figure 4 presents the Turbo Coded OFDM system [12] with a new feature. This feature is μLaCP technique [10] which has been modified to μLaIF. The system is formed in such a way that gives the ...
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Subband adaptive turbo coded OFDM based interactive video telephony
... Abstract—A range of adaptive orthogonal frequency division multiplex (AOFDM) video systems are proposed for interactive communications over wireless channels. The proposed constant target bit-rate subband adaptive ...
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BER analysis to mitigate PAPR in a turbo coded OFDM System
... encoder], and a coded bit stream, ENC1 is generated. The data sequence is then interleaved. That is, the bits are loaded into a matrix and read out in a way so as to spread the positions of the input bits. The ...
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TURBO CODED OFDM SYSTEM
... of OFDM are its multi-path delay spread tolerance and efficient spectral usage by allowing overlapping in frequency ...using turbo codes. The combination of turbo codes and OFDM and recursive ...
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Implementation Of Turbo Coded OFDM For PAPR Reduction using Modified Selective Mapping Technique
... of OFDM system is that, it exhibits high Peak to Average Power Ratio (PAPR) of the transmitted ...a turbo coded orthogonal frequency-division multiplexing (TCOFDM) system, low peak-to-average power ...
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Burst by Burst Adaptive Turbo coded OFDM Based Video Telephony
... Figure 4: Frame Error Rate FER or video packet loss ratio PLR versus channel SNR for the BPSK and QPSK xed modulation mode OFDM transceivers and for the corresponding subband-adaptive AO[r] ...
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Simulation of Turbo Coded OFDM System
... an OFDM which is suitable for high data rate transmission with a Forward Error Correction (FEC) method over a wireless channels have been done already by many ...an OFDM system by adding Turbo ...
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PERFORMANCE OF TURBO CODED OFDM IN WIRELESS APP
... channels, OFDM is able to mitigate the detrimental effects of multi path fading using a simple one- tap ...as OFDM suitable for high data rate transmission with forward error correction (FEC) methods over ...
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Separate Turbo Code and Single Turbo Code Adaptive OFDM Transmissions
... adaptive turbo coded OFDM systems. The turbo code rate is ...nonadaptive OFDM system with these schemes separately, the SNR thresholds for a given long-term target BER can be ...of ...
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Bit Error Rate Analysis of Coded OFDM for Digital Audio Broadcasting System, Employing Parallel Concatenated Convolution Turbo Codes
... “Convolutional Turbo Coded OFDM/TDD Mobile Communication System for High Speed Multimedia Services”, ...A Turbo Codes Test Bed in the Simulink Environment”, ...
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Low Complexity Channel Estimation for OFDM and MC CDMA
... achievable turbo-coded Code-Word Er- ror Rate (CWER), where a Code-Word corresponds to a single turbo- coded OFDM/MC-CDMA symbol, and (b) the MSE performance of the channel estimator ...
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OFDM Based Turbo Coded Hierarchical and Non Hierarchical Terrestrial Mobile Digital Video Broadcasting
... The turbo codec is shown to provide Signal-to-Noise Ratio (SNR) performance advantages in excess of 5–6 dB over conventional convolutional coding both in terms of bit error rate and video ...using ...
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Turbo Decision Aided Receivers for Clipping Noise Mitigation in Coded OFDM
... The introduction of an FEC inside the DAR loop enables the mitigation of the clipping noise with CR as low as 1 dB. Such a strong clipping level allows to consider IBO at the transmitter such that no further saturation ...
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Quadrature Amplitude Modulation: From Basics to Adaptive Trellis Coded, Turbo Equalised and Space Time Coded OFDM, CDMA and MC CDMA Systems
... improved turbo BCH-coded version of this RBF-aided system was characterised by Yee et ...a turbo-equalised RBF arrangement was the subject of the investigation conducted by Yee, Liew and Hanzo in ...
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Nested turbo codes for the costa problem
... Whenever dimensionality mismatch is present in practical nested Costa design,the tradeoff between the source and channel coding components limits its overall performance. However, in the high rate regime, our ...
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Turbo Coded Terrestrial Mobile Video Broadcasting
... Figure 6: a Histogram of the probability of occurence for various priority breakpoints and b average PSNR degradation versus BER for the rate-2/3 convolutional coded high priority data a[r] ...
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ISI Reduction in MIMO-OFDM with Insufficient Cyclic Prefix- A Survey
... MIMO-OFDM has gained considerable attention in wireless communication system. The high data rate and bandwidth efficiency of OFDM along with diversity techniquehas led to the use of this technology in many ...
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Ber Analysis Based On Convolutional Coded Ofdm For Digital Audio Broadcasting System
... and OFDM are used interchangeably, as the main focus of this paper is on OFDM, but it is assumed that any practical system will use forward error correction, thus would be ...
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HIPERLAN like Turbo Coded Multi user Detection Assisted OFDM Based Interactive Video Telephony
... Both of the above pilot-based channel estimation methods of Figure 3 are capable of achieving the same estimation perfor- mance, provided that in the case of dedicated non-spread pilot tones each user is allowed to boost ...
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