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Antijamming coding techniques

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1 Author(s)
Guosen Yue ; NEC Labs. America, Princeton, NJ

In this article, we have provided an overview of several coding techniques for erasure channels which can be or have been applied to cognitive radio systems as antijamming coding schemes for link maintenance purpose. We have discussed in detail the conventional erasure codes, LDPC codes, rate less codes, as well as recently proposed piecewise coding. Among these coding schemes, conventional RS codes are perfect in terms of erasure recovery performance. But they are not suitable for the antijamming purpose in cognitive radio due to inflexible code length and high decoding complexity for large block length. LDPC codes offer impressive capacity-approaching performance under very long code length. Well-designed LDPC codes with finite block length for erasure and burst-erasure channels may be applicable to cognitive radio system LDPC codes, rateless codes, as well asm.

Published in:

Signal Processing Magazine, IEEE  (Volume:25 ,  Issue: 6 )