Martínez, Alfonso, 1973-Scarlett, JonathanDalai, MarcoGuillén i Fábregas, A. (Albert)2018-11-062018-11-062014Martinez A, Scarlett J, Dalai M, Guillén i Fàbregas A. A complex-integration approach to the saddlepoint approximation for random-coding bounds. In: 11th International Symposium on Wireless Communications Systems (ISWCS); 2014 Aug 26-29; Barcelona, Spain. [New York]: IEEE; 2014. p. 618-21. DOI: 10.1109/ISWCS.2014.693342897814799586342154-0217http://hdl.handle.net/10230/35706Comunicació presentada a: the 11th International Symposium on Wireless Communications Systems (ISWCS), celebrat a Barcelona del 26 al 29 d'agost de 2014This paper derives a saddlepoint approximation for the random-coding bound to the error probability of channel coding by using complex-integration techniques. The approximation is given by a sum of two terms: one with Gallager’s exponent, and a second one with Arimoto’s strong converse exponent (above capacity) or the sphere-packing exponent (below the critical rate).application/pdfeng© 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The final published article can be found at http://dx.doi.org/10.1109/ISWCS.2014.6933428.info:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.1109/ISWCS.2014.6933428info:eu-repo/semantics/openAccess