TR2011-057

Secret Key Sharing and Rateless Coding for Practical Secure Wireless Transmission


    •  Liu, W.; Duan, C.; Wang, Y.; Koike-Akino, T.; Annavajjala, R.; Zhang, J., "Secret Key Sharing and Rateless Coding for Practical Secure Wireless Transmission", International Conference on Dependability (DEPEND), August 2011.
      BibTeX Download PDF
      • @inproceedings{Liu2011aug,
      • author = {Liu, W. and Duan, C. and Wang, Y. and Koike-Akino, T. and Annavajjala, R. and Zhang, J.},
      • title = {Secret Key Sharing and Rateless Coding for Practical Secure Wireless Transmission},
      • booktitle = {International Conference on Dependability (DEPEND)},
      • year = 2011,
      • month = aug,
      • url = {http://www.merl.com/publications/TR2011-057}
      • }
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  • Research Areas:

    Electronics & Communications, Wireless Communications


We discuss a secure wireless communication scheme, focusing on designing two major components: the key generation and the coding scheme. To achieve high key matching rate, we propose a feed-forward and feed-back quantization. The proposed scheme offers 1 dB improvement over the best known schemes. We also propose a universal quantization scheme with feed-forward/feed-back and show that its performance is the same as, or better than the other schemes which require prior distribution information. For rate-adaptive coding, we propose the use of rateless codes. Our evaluations show that the rateless code can offer significant performance gain over a low-density parity-check (LDPC) code. Moreover, we implement a soft input rateless decoder which offers additional gains. The overall security performance of our design based on these two components significantly outperforms existing designs.