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Multi-session network spread coding

Khirallah, C. and Stankovic, L. and Stankovic, Vladimir M. (2008) Multi-session network spread coding. In: 16th European Signal Processing Conference, 2008-08-25 - 2008-08-29. (Unpublished)

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Contrary to single-session network coding which is well understood in both theory and practice, the general problem of multi-session wireless network coding is still a challenge. In this paper, we extend our single-session Network spread coding scheme (NSC) to the more general multi-session NSC (MS-NSC) scheme. In contrast to straightforward NC, MSNSC uses the linearly independent complete complementary (CC) sequences as encoding vectors that facilitate communication over wireless channel suffering from fading, interference and noise. As opposed to classical NC, MS-NSC requires no intermediate encoding nodes (due to the physical characteristic of the channel). Results obtained under AWGN and flat fading channels demonstrate only minimal performance loss in the multi-session scenario compared to that in the single-session for the two proposed MS-NSC operating modes.