Turbo coded
Iterative carrier phase recovery suited to turbo-coded systems
... invariant turbo codes to make the de- coding robust against phase ...that turbo-coded BPSK, using the above particular turbo codes, does not have the rotational invariance ...
11
Space Time Turbo Coded Modulation: Design and Applications
... space-time turbo coded modulation (STTuCM), a signaling method that with lim- ited increase in decoding complexity enables a large, system- atic increase in coding gain while preserving the maximum transmit ...
13
Improving the Performance of Turbo-Coded Systems under Suzuki Fading Channels
... the turbo-coded ...the coded system compared to the Gaussian-based LLR, with a small degradation for the second approximation compared to the first ...
9
Low Complexity Decoding of Block Turbo Coded System with Antenna Diversity
... block turbo-coded systems are briefly introduced and their performances are compared under the same spec- tral e ffi ciency over block fading or quasistatic fading channel with two transmit and one or two ...
11
A Turbo Coded Burst by Burst Adaptive Wide Band Speech Transceiver
... that nonadaptive OFDM was also a contender [30] for the Pan-European Universal Mobile Telecommunications System [31] (UMTS), and hence it was beneficial to explore the potential of a substantially enhanced turbo ...
10
Turbo Coded OFDM with Large Number of Subcarriers
... new Turbo coding scheme based on Parallel Con- catenated Convolutional Codes was become part of an OFDM system which was modified according to the specifications’ needs and addressed many issues of the previous ...
8
Subband adaptive turbo coded OFDM based interactive video telephony
... a turbo-coded system design study that upon invoking the technique advocated—irrespective of the channel conditions experienced—the transceiver achieves always the best possible video ...
11
An Iterative Multiuser Detector for Turbo-Coded DS-CDMA Systems
... We propose an iterative multiuser detector for turbo-coded synchronous and asynchronous direct-sequence CDMA (DS-CDMA) systems. The receiver is derived from the maximum a posteriori (MAP) estimation of the ...
9
BER analysis to mitigate PAPR in a turbo coded OFDM System
... Turbo coded OFDM system has been discussed in this ...of Coded OFDM symbol with and without ...the turbo codes along with PAPR reduction techniques, SNR improvement of ...
9
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 capability to ...
8
Mitigationof Security Risk in Satellite Communication by using Turbo coded DSSS
... The Turbo code employed in this section having the transmission rate of 1/3 bits per signaling ...a Turbo coded bit stream and then using BPSK signaling for transmission improves the spectral ...
14
Delay Efficiency Analysis of Turbo Coded Cooperative Communication in Wireless Sensor Networks
... and turbo coded system for Binary Phase Shift Keying (BPSK) and QAM ...the turbo coded system. Therefore, it is clear that turbo coding reduces the required signal power and thus it is ...
6
A Proposed Turbo Coded Wavelet Packet Modulation based MC CDMA
... A turbo coded Discrete Wavelet Packet Transform DWPT based Multicarrier CDMA system has been proposed to enhance the bit error rate and complexity of the conventional MC-CDMA which based on Fast Fourier ...
7
Carrier and Clock Recovery in (Turbo-) Coded Systems: Cramér-Rao Bound and Synchronizer Performance
... the coded symbols, allowing efficient numerical evaluation of the CRB for a wide range of coded systems by means of the BCJR ...1/2 turbo code combined with QPSK ...the coded system are ...
9
Simulation of Turbo Coded OFDM System
... of Turbo Codes in OFDM System is called as Turbo Coded Orthogonal frequency Division multiplexing ...1993, Turbo Codes were first presented at the international Conference on Digital ...
6
Turbo Coded Burst by Burst Adaptive Wideband Modulation with Blind Modem Mode Detection
... CODING BASED MODULATION DETECTION ALGORITHM Since this coded AQAM system employed burst-by-burst decoding at the receiver, we can exploit the error correction capability of the channel c[r] ...
6
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] ...
5
TURBO CODED OFDM SYSTEM
... Engineers have already combined techniques such as OFDM suitable for high data rates transmission with forward error correction (FEC) methods over wireless channels. Now, we enhance the system throughput of a working ...
8
Blind Equalised and Turbo Coded Satellite Based Digital Video Broadcasting
... Figure 3: Average BER versus SNR per bit performance after convolutional or turbo decoding for QPSK modulation and one-symbol delay CIR NE: Non-Equalised BG: Benveniste-Goursat S-a-G: St[r] ...
5
Adaptive Wireless Transceivers: Turbo Coded, Turbo Equalised and Space Time Coded TDMA, CDMA and OFDM Systems
... suoka et al. in conjunction with adaptive modulation in reference [17], where the transmitted burst incorporated an outer Reed Solomon code and an inner convolutional code in order to achieve high-quality data ...
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