In an effort to achieve bandwidth efficient but reliable communications at lower signal-to-noise ratios, NASA is evaluating its presently developed coding techniques by conducting simulations and tests. These tests will form a basis for comparison of these systems and some newly proposed systems for NASA's coding standards. NASA's present coding standards support convolutional inner codes and Reed-Solomon outer codes. Simulations of coding techniques under development indicate that some variation of convolutional codes with sequential decoding achieve a performance close to that of turbo codes. Compared to the turbo codes these convolutional codes advantages in computational complexity and aspects such as free and open architectures.


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    Titel :

    A comparison of modified convolutional codes with sequential decoding and turbo codes


    Beteiligte:
    Morakis, J.C. (Autor:in)


    Erscheinungsdatum :

    01.01.1998


    Format / Umfang :

    413602 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    A Comparison of Modified Convolutional Codes with Sequential Decoding and Turbo Codes

    Morakis, J. / Miller, W. / IEEE; Aerospace and Electronics Systems Society | British Library Conference Proceedings | 1998




    Simplified Decoding of Convolutional Codes

    Truong, T. K. / Reed, I. S. | NTRS | 1986