Steven S. Pietrobon

Learn More
SUMMARY A soft–in/soft–out algorithm which estimates the a posteriori probabilities (APP) for each transmitted bit is investigated. The soft outputs can be used at the next decoding stage, which could be an outer code or another iteration in an iterative decoding process. This algorithm is estimated to have approximately four times the complexity of the(More)
Recently, the turbo-code scheme was proposed, which achieves results very close to the Shannon-limit. The encoding and decoding of turbo-codes is reviewed. In particular, a comparison of the current methods used for terminating the trellis of the turbo-code are described. A novel approach to termination of the code is introduced which removes the need to(More)
*A method of efficiently implementing a continuous MAP decoding algorithm is presented. A sliding window technique is used to reduce the block size at the expense of extra computations. The smaller block size results in a large reduction in memory storage requirements , reduced delay, and the ability to implement a continuous MAP decoder. A technique for(More)