منابع مشابه
New applications of the simple bound: random codes, serial turbo codes and punctured codes
This paper deals with the application of the “Simple” Bound technique to a new family of serially concatenated turbo codes and to random codes with the goal of a fair comparison of the ML (Maximum Likelihood) performance in AWGN channel. Reported results confirm that outer code improvement causes great advantages both for the waterfall and the floor. In particular, it is shown that, for given r...
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The paper starts with a short overview of channel coding and the reader is reminded the concept of convolutional encoding. Bottlenecks of the traditional approach are described and the motivation behind turbo codes is explained. After examining the turbo codes design more in detail, reasons behind their efficiency are brought out. Finally, a real-world example of the turbo code used in the thir...
متن کاملAsymmetric Turbo - Codes 1
| This paper examines the peformance of turbo-codes with non-identical component codes. We show that asymmetric turbo-codes provide good performance with respect to both the \erroroor" and the \pre-erroroor" regions of the bit error rate
متن کاملWoven Turbo Codes
A new code construction namely woven turbo codes, is presented , which is a variation of woven convolutional codes. Parallel encoders (turbo codes 2]) can be considered as a special case of woven turbo encoders, where only one outer and inner encoder is used. However, woven turbo codes with a larger number of outer codes yield higher minimum distances than turbo codes with random permutations.
متن کاملSpace-Time Turbo Codes
Introduction: Recently, there has been a surge of interests in the design of the so called \space{time" codes which take advantage of both the spatial diversity provided by multiple antennas and the temporal diversity available with time{varying fading. The previous proposed space{time codes were mainly based on trellis codes or orthogonal block codes. In those codes, the number of transmitter ...
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ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 2009
ISSN: 0018-9448
DOI: 10.1109/tit.2009.2018339