Turbo Equalisation using Symbol-based MAP Decoder
PARALLEL PROCESSING BASED TURBO DECODER DESIGN USING VERTIBI ALGORITHM
... each symbol-processing cycle within each iterative ...SOVA-based turbo decoder with the normalization process embedded may work either with a larger clock cycle period or with a considerable ...
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Turbo Coding, Turbo Equalisation and Space Time Coding
... for turbo codes where all the parity bits from both component encoders are transmitted, leading to a one-third rate ...the decoder two component, soft-in soft-out, decoders are used in parallel in the ...
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Low-Power Maximum a Posteriori (MAP) Algorithm for WiMAX Convolutional Turbo Decoder
... codes. Turbo codes have shown their outstanding performance in terms of bit error rate (BER) at very low signal-noise ratio (SNR) since they appeared in the early ...the turbo codes were introduced by ...
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On the Design of Turbo Trellis Coded Modulation schemes using Symbol based EXIT Charts
... Figure 1: Decoding model for a parallel concatenated TTCM scheme. EXIT charts visualise the input and output characteris- tics of the constituent SISO decoders in terms of the mutual information transfer between the ...
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A Flexible LDPC/Turbo Decoder Architecture
... iterative Turbo decoder architec- ture based on the Flex-SISO ...LDPC decoder architecture shown in ...the Turbo de- coder has separate parity channel LLR inputs whereas the LDPC ...
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Reduced Complexity In phase/Quadrature phase Turbo Equalisation Using Radial Basis Functions
... refined using a smaller step-size of ...of turbo equalisation iterations, as the number, where no further significant performance improvement can be obtained upon invoking further ...iteration ...
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A reordered first fit algorithm based novel storage scheme for parallel turbo decoder
... Keywords turbo codes, parallel turbo decoding, interleaver, vertex coloring, reordered first fit algorithm (RFFA), field programmable gate array ...of turbo decoder, a substantial amount of ...
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Turbo Detection of Symbol Based Non Binary LDPC Coded Space time Signals using Sphere Packing Modulation
... q k l , 0 ≤ l ≤ L − 1 and 0 ≤ k ≤ K − 1 , (13) and d l k as well as q l k refer to the elements at the cross-over point of the k th row and l th column of matrices D and Q , respec- tively. Again, the probabilities ...
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BER Analysis Using Log Map Decoding Algorithm for Turbo Codes Channel
... Fig.2 Turbo decoder For turbo codes, the Soft Output Viterbi Algorithm (SOVA), and the Log-MAP decoding algorithm can be used as they produce soft-bit ...the MAP decoding scheme and is ...
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BER Analysis Using Log Map Decoding Algorithm for Turbo Codes Channel
... Fig.2 Turbo decoder For turbo codes, the Soft Output Viterbi Algorithm (SOVA), and the Log-MAP decoding algorithm can be used as they produce soft-bit ...the MAP decoding scheme and is ...
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Optimized Turbo Decoder Technique For High Performance LTE In Wireless Communication
... LTE, MAP, Trellis Graph, Turbo ...is based on the GSM/EDGE and UMTS/HSPA network technologies, increasing the capacity and speed using a different radio interface together with core network ...
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Frequency-Domain Turbo Equalisation in Coded SC-FDMA Systems: EXIT Chart Analysis and Performance
... Assisted Turbo FD-DFE Apart from the soft-MMSE aided turbo FD-LE, the turbo FD-DFE may be considered as an alternative technique of mitigating multipath ...aided turbo FD-DFE of Fig. 3 may ...
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Improving Network-on-Chip-based Turbo Decoder Architectures
... Stemming from previous publications, this work concen- trates first on improving the throughput by exploiting adaptive-bandwidth-reduction techniques. This technique shows in the best case an improvement of more than 60 ...
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A Network-on-Chip-based turbo/LDPC decoder architecture
... contrary, turbo codes yield a higher than required throughput with a 22-nodes ...for turbo codes can be lowered to 75 MHz and throughput is still above ...2400 turbo code and N = 2304, r = ...
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Hardware implementation of a pipelined turbo decoder
... Although turbo codes have a disadvantage of a very high computational complexity that originally prevented them from implemention in hardware, recent VLSI development [r] ...
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Fully-parallel quantum turbo decoder
... Quantum Turbo Decoder Zunaira Babar, Hung Viet Nguyen, Panagiotis Botsinis, Dimitrios Alanis, Daryus Chandra, Soon Xin Ng, Robert ...Abstract—Quantum Turbo Codes (QTCs) are known to operate close to ...
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Combined Trellis Coded Modulation and Blind Turbo Equalisation
... proposed coded modulation based turbo{PSP equaliser, we.. Observe in the table that for the shake of a[r] ...
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An Efficient Ripple Carry Adder Based Low Complexity Turbo Decoder
... Conventional turbo decoder architecture consists of dedicated hardware units of alpha unit, beta unit and gamma unit to calculate the forward recursion values, backward recursion values and prebackward ...
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Design and FPGA Implementation of Stochastic Turbo Decoder
... APP decoder is part of a turbo decoder: the Extr ...APP decoder as the input Pr ex in ...bits using Bernoulli ...network based on the code trellis ...
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Long Term Evolution of Turbo Encoder and Decoder Architectures using Viterbi Algorithm
... computation is highly desirable, which has always been a challenge in literature. In order to address this challenge, in this brief, a new relation between the α and β metrics is introduced; based on this new ...
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