P. Jung and M. Nahan, \Dependence of the error performance of turbo-codes on the interleaver structure in short frame transmission systems," Electronics Letters, vol. 30, no. 4, pp. 287-288, Feb. 17th, 1994.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....interleaver, which is a randomly created interleaver with some restrictions, designed to break low weight input patterns. Other semi random interleaver designs include the original one used by Berrou and Glavieux [6] Other early attempts at interleaver design include those by Jung and Na han [7]. In this paper, interleavers are chosen from a large set of random interleavers based on the low weight input distance properties of the resulting Turbo code. It was stated that a regular block interleaver performs better than the chosen random interleaver for the given block size. This contrasts ....

P. Jung and M. Nahan, \Dependence of the error performance of turbo-codes on the interleaver structure in short frame transmission systems," Electronics Letters, vol. 30, no. 4, pp. 287-288, Feb. 17th, 1994.

.... 2 10 1 10 log 10 (E b N 0 ) dB] 395 MLSE 395: 1st, 2nd, 4th, 8th and 16th it. Fig. 11. Turbo coded BER performance for M = 2, 39 5 rectangular interleaver: comparison between optimum noniterative and iterative decoding such as K 200, one normally employs rectangular interleavers [16], where the number of rows approximately equals the number of columns. For high information word lengths K one normally employs random interleavers, in order to achieve a good coding performance. The super trellises, which belong to these schemes, are fairly complex, as it was detailed in Section ....

P. Jung and M. Nahan. Dependence of the error performance of turbo-codes on the interleaver structure in short frame transmission systems. Electronics Letters, pages 287-288, 1994.

....other considered interleavers, which is probably due to an increased minimum distance. The other interleavers were a uniform interleaver [3] of length K = 169, which was obtained by averaging the WER over randomly chosen interleavers, the 12 Theta 16 rectangular interleaver (length K = 192) of [6] and a 7 Theta 24 helical interleaver (K = 168) cf. 2] As regards to the bit error rate (BER) again the 13 Theta 13 interleaver performs best with 2:7 Delta 10 Gamma5 at an SNR of 10 log 10 E b =N 0 = 3dB. Final Remark: In contrast to conventional interleaver design, the purpose of ....

P. Jung and M. Nahan. Dependence of the error performance of turbo-codes on the interleaver structure in short frame transmission systems. Electronics Letters, pages 287--288, 1994.

....search for improved decoding algorithms, question 2 may lead to the optimization of the PCC for given system constraints such as delay or complexity. Question 3, in turn, is related to the importance of the interleaver optimization, a topic which has already received some cut and try attentions [17, 19, 18]. Finally, question 4 has been discussed in [20] where the authors seem to believe that recursive convolutional codes have superior merits in themselves, rather than only when used as CC of a PCC. Formidable complexity obstacles discourage classical theoretical analyses of the PCCs. As an ....

....to find good interleavers of a given length, as well as theoretical results on limits to the achievable free distance for given interleaver length and CCs would be important, especially for PCCC employing short interleavers. A few, very preliminary steps in this directions have been moved in [17, 19, 28, 25] using cut and try approaches. 3. For some applications, a short decoding delay is a must. In these cases, the best compromise between interleaver length and CCs complexity certainly deserves attention, as does the optimization of the CCs based on the new principles outlined in Subsection 6.1. ....

P. Jung and M. Nasshan. "Dependence of the error performance of turbo-codes on the interleaver structure in short frame transmission systems". Electronics letters, 30(4):287--288, February 1994.

....of the second code was used. ABER of 1.2 x 10 3 and a FER of 2.5 x 10 2 , was achieved at an E b N 0 = 2.0 dB after 10 iterations. These results are reported to be 1.2 to 1.7 dB better than the performance achieved with a non systematic convolutional code with the same memory order. In [38] it was concluded that for BER 10 3 and large FER of 10 2 , the effect of the chosen interleaver on the performance of the corresponding turbo code is almost negligible 27 in the case of short frame transmission (192 bits) However for a slightly larger block size (399 bits) the ....

P. Jung, and M. Na#han, "Dependence of the error performance of turbo codes on the interleaver structure in short frame transmission systems," Electron. Lett., vol. 30, No. 4, pp. 287--288, Feb. 1994.

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JUNG, P., & NASSHAN, M. 1994a. Dependence of the Error Performance of TurboCodes on the Interleaver Structure in Short Frame Transmission Systems. Electronics Letters, 30(4), 287--288.

No context found.

P. Jung and M. Nahan, "Dependence of the error performance of turbo-codes on the interleaver structure in short frame transmission systems", Electronics Letters, Vol. 30, No. 4, pp. 285--288, February 17, 1994.

No context found.

P. Jung and M. Naßhan, "Dependence of the error performance of turbo-codes on the interleaver structure in short frame transmission systems", Electronics Letters, Vol. 30, No. 4, pp. 285--288, February 17, 1994.

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P. Jung and M. Nasshan, "Dependence of the error performance of turbocodes on the interleaver structure in short frame transmission systems," Electronics Letters, vol. 30, pp. 287--288, 1994.

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