Map decoding
BER Analysis Using Log Map Decoding Algorithm for Turbo Codes Channel
... Log-MAP decoding algorithm is used which in fact is based on the same idea as the MAP decoding algorithm with the benefit that it simplifies the computation by eliminating the multiplicative ...
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Successive interference cancelation and MAP decoding for mobile MIMO OFDM systems and their convergence behavior
... EM algorithm or from the LLR values from the decoder. Using these estimates, ICI is computed and removed as in [11,12] to obtain a diagonal system matrix. The scheme in [21] is applicable to single-carrier (SC) systems. ...
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Fixed-Point MAP Decoding of Channel Codes
... (MAP) decoding algorithm of turbo and low-density parity-check (LDPC) codes, the most advanced channel codes adopted by modern communication systems for forward error correction ...the decoding ...
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BER Analysis Using Log Map Decoding Algorithm for Turbo Codes Channel
... Log-MAP decoding algorithm can be used as they produce soft-bit ...Log-MAP decoding scheme is the modified version of the MAP decoding scheme and is computationally less complex ...
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Memory-Reduced and Area Efficient Turbo Decoding Architecture
... high decoding latency due to the iterative decoding process, the forward backward recursion in the maximum a posteriori (MAP) decoding algorithm and the interleaving and deinterleaving between ...
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Fast Converging Generalized Turbo Decoding Scheme with Enhanced Throughput for Mobile Radio
... turbo decoding algorithms, and discuss the various im- plementation methods of the maximum a posteriori (MAP) ...log-MAP decoding algorithm by a linear approximation of the correction function ...
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Hybrid Decoding: Decoding with Partial Hypotheses Combination over Multiple SMT Systems
... 2004) decoding over n-best list finds a translation that has lowest expected loss with all the other hy- potheses, and it shows that improvement over the Maximum a Posteriori (MAP) ...
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Performance Evaluation of Turbo Decoding Methods
... The objective of this project is to study the two prime candidates for decoding turbo codes, namely SOVA and Log-MAP decoding algorithms. Simulations are carried out using MATLAB software. BER ...
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Improved Max-Log-MAP Turbo Decoding by Maximization of Mutual Information Transfer
... Since the discovery of turbo codes [1], there has been re- newed interest in the field of coding theory, with the aim of approaching the Shannon limit. Furthermore, with the proliferation of wireless mobile devices in ...
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Improved Iterative Parallel Interference Cancellation Receiver for Future Wireless DS-CDMA Systems
... We present a new turbo multiuser detector for turbo-coded direct sequence code division multiple access (DS-CDMA) systems. The proposed detector is based on the utilization of a parallel interference cancellation (PIC) ...
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Low-complexity iterative receiver design for mobile OFDM systems
... iterations are repeated. In [6], derived for MIMO sys- tems, a new MMSE filter taking the decision errors into account is derived. A MMSE estimate of each QAM sym- bol from each antenna (rather than a joint estimation of ...
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Forward-Error Correction Coding for Underwater Free-Space Optical Communication
... log-MAP decoding algorithm with 16 decoding ...max-log-MAP decoding algorithm with 10 decoding ...log-MAP decoding algorithm with 16 decoding iterations, and ...
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Estimation of Two Dimensional Correction Factors for Min Sum Decoding of Regular LDPC Code
... Log-MAP decoding can be com- pensated by scaling the a-posteriori LLR values of the information bits based on the fact that the latter is a growing estimate to the transmitted codeword, and the correction ...
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Fast Decoding and Optimal Decoding for Machine Translation
... Thus, while decoding is a clear-cut optimiza- tion task in which every problem instance has a right answer, it is hard to come up with good answers quickly. This paper reports on mea- surements of speed, search ...
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Faster Decoding for Subword Level Phrase based SMT between Related Languages
... as decoding (Vilar et ...the decoding speed, but it is possible that pruning may also improve decoding speed since fewer hypothesis may have to be looked up in the phrase table, and smaller phrase ...
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INDOOR GLOBAL PATH PLANNING BASED ON CRITICAL CELLS USING DIJKSTRA ALGORITHM
... Information hiding is the most important method in hiding secret information from unauthorized party. The purpose of information hiding is to protect the secret information. One of the method commonly used is ...
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Iterative channel equalization, channel decoding and source decoding
... source/channel decoding scheme was proposed for exploiting the redundancy imposed by a channel code and the residual redundancy in a Variable-Length Coded (VLC) source, where the VLC was viewed as a binary channel ...
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Towards Decoding as Continuous Optimisation in Neural Machine Translation
... sequential decoding of symbols in the target sequence, the inter-dependencies among the target symbols are not fully ...when decoding the words of the target sentence in a left-to-right manner, the right ...
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Reduced complexity Log MAP algorithm with Jensen inequality based non recursive max∗ operator for turbo TCM decoding
... complexity decoding algorithms proposed in the litera- ture, i.e., Linear Log-MAP, Average Log-MAP, and Shift Log-MAP, have shown that the AvN Log-MAP algorithm reveals significant ...
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Improving Decoding Generalization for Tree to String Translation
... Figure 4 (a) depicts an example unseen substree where no any rules is matched at its root node S . Its simplest pseudo-rule is to simply combine a sequence of S ’s child nodes. To give the model more options to build ...
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