[PDF] Top 20 Modified Maximum A Posteriori Algorithm For Iterative Decoding of Turbo codes

... Using this method the likelihoods of different bits are computed and passed to the second decoder. The second decoder computes the likelihood ratios and passed the first decoder. The process is repeated until the ... See full document

... channel decoding (JSCD) has been proved to be an effective technique which can improve decoding performance by exploiting residual source ...a turbo code is ...a posteriori probability (APP) ... See full document

... of turbo codes as an error- control code and the software implementation of two different decoding algorithms which is Log-Maximum A Posteriori (Log-MAP) algorithm or the Soft ... See full document

... The turbo decoding algorithm of a decade ago constituted a milestone in error-correction coding for digital communications, and has inspired extensions to generalized receiver topologies, including ... See full document

... correcting codes that have proved to give a performance close to the channel capacity as proposed by ...A turbo code encoder is formed by the parallel concatenation of two identical recursive convolutional ... See full document

... Abstract- Turbo codes are a new class of forward error correcting codes that have proved to give a performance close to the channel capacity as proposed by ...A turbo code encoder is formed by ... See full document

... MAP decoding performed in the L-MAP and (E) ML-MAP without losing correction ...MAP decoding algorithm reduces power consumption and reduced memory ...binary turbo codes is completely ... See full document

... complexity decoding and reliable form of communication system with less number of errors by using hard decision decoding with iterative algorithm ...decision decoding .The ... See full document

... The decoding algorithm involves the joint Estimation of two Markov processes (MAP) one for each constituent ...MAP algorithm is to find the a posteriori probability of each state transition, ... See full document

... The turbo decoder is specific in ...its iterative decoding nature, high latency, and significant silicon area ...The decoding procedure is operated by utilizing the ...actual maximum a ... See full document

... the maximum a posteriori (MAP) decoding algorithm of turbo and low-density parity-check (LDPC) codes, the most advanced channel codes adopted by modern communication ... See full document

... As we can see, there are two paths emanating from the I2 node, merging to the R node and the I3 node, respectively. In contrast to a regular RSC trellis in which each path has equal probability, the two paths have ... See full document

... multiplicity codes. Multiplicity codes are currently the only known codes which achieve rate arbitrarily close to 1 while supporting o(n)-time local ...these codes are very closely related to ... See full document

... LDPC codes, separated by an interleaver through the turbo-code structure proposed by Berrou and ...LDPC codes, and the interleaver in the proposed code has a positive effect on the ... See full document

... Then, we investigated the stability of the SDM, and of the overall decoder. For some simple codes we demonstrated that the extrinsic information, calculated by the SDM de- coder, does not converge throughout the ... See full document

... a modified extended key equation algorithm in list decoding of generalized Reed-Solomon (GRS) ...list decoding algorithm of generalized Reed-Solomon codes has two steps, ... See full document

... BP algorithm (sometimes called sum- product) on the Tanner graph of a turbo code does not perform su ffi ciently well to compete with the turbo decoder performance ...convolutional codes as ... See full document

... correcting codes according to Lin et al [13] employs the combination of both FEC and ARQ systems in order to attain an excellent reliability as exhibited by ARQ system and high throughput as also exhibited by FEC ... See full document

... channel codes such as turbo codes and low-density parity-check (LDPC) codes have been used to protect the JPEG2000 codestream using various methods ...source-channel decoding (JSCD) can ... See full document

... checking the freezing of CSFGs at a stage is significant to the operation of the existed scheme. Here, we borrow an idea from SCD, where the results of the previously decoded bits are used for the decoding of the ... See full document