log-MAP turbo decoder
Fast Converging Generalized Turbo Decoding Scheme with Enhanced Throughput for Mobile Radio
... than log-map decoding. Analysis also con- firms that the log-MAP decoding algorithm is the least-efficient algorithm as compared to max-log-MAP algorithm in terms of processing ...
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BER Performance and Decoding Time Enhancement of LTE Turbo Decoder
... ABSTRACT: Turbo coding is one of the major blocks of LTE ...for turbo decoder namely Maximum a Posteriori (MAP) algorithm, Log-MAP algorithm, Max-Log-MAP ...
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BER Analysis Using Log Map Decoding Algorithm for Turbo Codes Channel
... Turbo code, a very powerful error correcting coding scheme, which is formed by the parallel concatenation of two recursive non-systematic convolutional codes, is presented. From the simulation results we observed ...
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BER Analysis Using Log Map Decoding Algorithm for Turbo Codes Channel
... A turbo code encoder is formed by the parallel concatenation of two identical recursive convolutional encoders separated by an ...The turbo code decoder utilizes two cascaded decoding blocks where ...
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Improved Max-Log-MAP Turbo Decoding by Maximization of Mutual Information Transfer
... of turbo decoders whose com- ponent decoders use the max-log-MAP ...such turbo decoders was investigated by using extrinsic information transfer (EXIT) ...component decoder in order to ...
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A state metrics compressed decoding technique for energy efficient turbo decoder
... applications, turbo codes are frequently employed to guarantee reliable data ...the turbo decoder and the probability of data frame retransmission in the physical layer, memory capacity reduced near ...
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Iterative carrier phase recovery suited to turbo-coded systems
... iterative turbo decoder, although it would also be applicable with other types of ...SISO decoder, such as the MAP decoder used for turbo ...information log-likelihood ...
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Reduced complexity Log MAP algorithm with Jensen inequality based non recursive max∗ operator for turbo TCM decoding
... AvN Log-MAP algorithm in parallel TTCM scheme is ...the Log-MAP algorithm and requires only ...AvN Log- MAP algorithm to the remaining algorithms (Table 5) shows that its ...
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Performance Evaluation of Turbo Decoding Methods
... different turbo decoding algorithms has very high complexity when compared to classical forward error correction decoding ...iterating decoder algorithms are, soft output Viterbi algorithm and maximum a ...
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Performance Analysis In Terms Of Bit Energy To Noise Ratio Spectral Density On Decoding Algorithms Of Turbo Codes
... noise. Turbo codes come closest to approaching the Shannon limit, the theoretical limit of maximum information transfer rate over a noisy ...and Log-Maximum A Posteriori Probability (Log- ...
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Efficient MAP-algorithm implementation on programmable architectures
... Max-Log-MAP decoder can be realized in 16 cycles per ...resulting Turbo- decoding performance is 1875 kbit/s at 300 ...ponent decoder with a Log-MAP implementation has a ...
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Vhdl Implementation Of An Area Efficient Algorithm For Turbo Decoders Having Wireless Sensor Networking Applications
... of turbo codes enhances the data transmission efficiency in digital communications systems especially for wireless communication ...Constant Log MAP Algorithm is introduced for turbo ...
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Forward-Error Correction Coding for Underwater Free-Space Optical Communication
... first turbo code investigated was the UMTS turbo code, which provides a wide selection of frame sizes ranging from k = 5114 bits to k = 40 bits and operates at a rate r = ...CCSDS turbo code, which ...
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System Level Design of a Turbo Decoder for Communication Systems
... Modern digital designs entail enormous system complexity. Large values of design details require the modeling of these systems at a level of abstraction higher than the RTL of abstraction. Designing at a higher level of ...
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Performances of the Decoding Algorithms near Shannon Limit
... of turbo codes, which, however, still can’t be embodied in the characteristics of the equipment due to the complexity of the algorithms of this ...min-sum decoder of the DVB-S2 low-density parity-check ...
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Smart Antenna Aided Multicarrier Transceivers for Mobile Communications
... our turbo SDM-OFDM system employing the MIMO-DDCE scheme of Section ...OHRSA Log-MAP SDM detector of Section ...1/2 turbo-coded 8x8-QPSK-OFDM system, exhibiting an effective throughput of 8 ...
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VLSI Implementation of a Parallel Turbo-Decoder for Wireless Communication
... The conventional LUT-Log-BCJR architecture, which employs the sliding-window technique to generate the LLR sequence b1^e as the concatenation of wEqual-length sub-sequences. Each of these windows is ...
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Design and Implementation of a Parallel Turbo Decoder for Wireless Communication
... low turbo decoder energy consumption is implied by Max-Log-BCJR algorithm’s low ...optimal Log-BCJR algorithm increasing the required transmission energy by ...
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A Turbo Decoder Included in a Multi User Detector: A Solution to be Retained
... This paper deals with the presentation of different multi-user detectors in the Universal Mobile Telecommunica- tions System (UMTS) context. The challenge is always to optimize the compromise between performance and ...
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Analysis of iteration control for turbo decoders in turbo synchronization applications
... iterative turbo code decoding and synchronization is called turbo synchroniza- tion (Godtmann et ...2006). Turbo synchronization allows to decrease the number of pilot symbols for synchronization ...
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