On the random coding exponent of nonlinear gaussian channels. - Kostis Xenoulis; Nicholas Kalouptsidis (ITW, 2009)

Improvement of Gallager upper bound and its variations for discrete channels. - Kostis Xenoulis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2009)

Θεωρία πληροφορίας και επεξεργασία σήματος για (μη-γραμμικά) επικοινωνιακά κανάλια - Kostis Xenoulis (2010)

Achievable Rates for Nonlinear Volterra Channels. - Kostis Xenoulis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2011)

Tight Performance Bounds for Permutation Invariant Binary Linear Block Codes Over Symmetric Channels. - Kostis Xenoulis; Nicholas Kalouptsidis (IEEE Trans. Inf. Theory, 2011)

New achievable rates for nonlinear Volterra channels via martingale inequalities. - Kostis Xenoulis; Nicholas Kalouptsidis; Igal Sason (ISIT, 2012)

Refinement of the DS2 Bound and its Extensions for Discrete Memoryless Symmetric Channels. - Kostis Xenoulis; Nicholas Kalouptsidis (IEEE Commun. Lett., 2014)

List Permutation Invariant Linear Codes: Theory and Applications. - Kostis Xenoulis (IEEE Trans. Inf. Theory, 2014)