Turbo Codes
A Review on Turbo Codes using Different Algorithms
... Turbo codes offer the ability to build powerful codes that utilize a relative simple soft-decision decoding ...the turbo decoder is constructed from two identical serial decoding blocks that ...
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Joint Source and Channel Decoding for Variable Length Encoded Turbo Codes
... with turbo codes [11–17], residual source redun- dancy is usually utilized at the decoder side with the bit- level joint decoding, while no improvement has been done at the encoder ...a turbo code, ...
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Design of Three-Dimensional Multiple Slice Turbo Codes
... multiple turbo codes. mul- tiple turbo codes were introduced in [7] by adding a third dimension to the two-dimensional turbo code using re- duced state ...two-dimensional turbo ...
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On Cross Layer Design of AMC Based on Rate Compatible Punctured Turbo Codes
... RCPT codes. To this end, a hybrid FEC/ARQ based on RCPT codes has been ...compatible codes as convolutional and LDPC as ...since turbo coding and indeed punctured turbo codes are ...
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TO IMPROVE BIT ERROR RATE OF OFDM TRANSMISSION USING TURBO CODES
... Turbo codes were first presented at the International Conference on Communications in ...concatenated codes can be implemented by using either block codes (PCBC) or convolutional codes ...
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Optimized BER Performance of Asymmetric Turbo Codes over AWGN Channel
... asymmetric turbo codes are constructed with different constraint lengths and mixed type of generator ...asymmetric turbo codes is superior to conventional symmetric turbo ...the ...
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Modified Maximum A Posteriori Algorithm For Iterative Decoding of Turbo codes
... Turbo codes are one of the most powerful error correcting ...these codes so powerful is the use of the so-called iterative decoding or turbo ...
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On Rate-Compatible Punctured Turbo Codes Design
... volutional codes (PCCC) with two constituent encoders were described with a variable rate of 1 / 2 to 1 / 3 using the same mother ...tidimensional turbo codes to be used in hybrid FEC/ARQ protocols, ...
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Implementation of Turbo Codes for Noisy Channels in LTE Systems
... Abstract: Turbo codes can be viewed as a class of parallel concatenation of convolution codes which attain low Bit Error Rate in the waterfall region of the error even for relatively low Signal to ...
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Error Detection and Correction using Turbo Codes
... The decoding process of the turbo codes is based on iterations, performed by the MAP algorithm. This is applied for each constituent code. MAP algorithm is implemented by the SISO decoder, which is used to ...
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System Performance of Concatenated STBC and Block Turbo Codes in Dispersive Fading Channels
... The turbo code appears to be a good candidate for that ...on turbo codes has essentially been focused on convolutional turbo codes (CTC), while much less e ff ort has been spent on block ...
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Evaluation of Turbo Codes Varying Various Parameters Using BCJR Algorithm
... ABSTRACT: Turbo codes are the most powerful and widely adopted error correcting codes in several communication ...applications. Turbo codes are used to detect and correct the error ...
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A New Simplified Algorithm Suitable for Implementation on FPGA for Turbo Codes
... of turbo codes [1] and its capability of near Shannon limit error correction performance, a lot of interest had been raised to find practical decoding algorithms for implementation in real ...
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A survey of three dimensional turbo codes and recent performance enhancements
... conventional turbo codes ...irregular turbo coding schemes with suitable interleavers in order to improve their distance ...regular codes in both the waterfall and the error floor ...
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Turbo Detection of Space time Trellis Coded Constant Bit Rate Vector Quantised Videophone System using Reversible Variable Length Codes, Convolutional Codes and Turbo Codes
... convolutional codes, we have employed the puncturing pattern used by Ya- suda et ...rate turbo codes via puncturing, the interested reader is referred to ...
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Scalable video/image transmission using rate compatible PUM turbo codes
... (PUM) turbo coding to mitigate the impact of bit errors and packet loss on transmitted video stream and still ...Convolutional Codes and Rate Compatible Turbo Codes ...PUM turbo ...
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Efficient Decoding of Turbo Codes with Nonbinary Belief Propagation
... H of the parity-check matrix of a convolutional code as used in turbo codes parity-check matrix as it can be seen for the Tanner graph representation of our previous example in Figure 2(c). This ...
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The Super Trellis Structure of Turbo Codes
... Turbo codes, which were proposed by Berrou, Glavieux, and Thiti- majshima in 1993 [1], are at time of writing the most power-efficient binary channel codes for medium bit-error rates (BERs) ...block ...
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Nested turbo codes for the costa problem
... lattice codes and propose nested turbo codes using turbo-like trellis-coded quantization (TCQ) for source coding and turbo trellis-coded modulation (TTCM) for channel ...TCQ, ...
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Low Latency Low Complexity Compare and Decode Architecture for LTE Turbo Codes
... of turbo codes in 1993, much more powerful codes referred to collectively as turbo and turbo-like codes have eclipsed classical ...
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