[IEEE 2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. - Bangalore, India (11-14 Dec. 2004)] 2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. - Reverse converters for the moduli sets {2/sup 2N/-1, 2/sup N/, 2/sup 2N/ +1} and {2/sup N/-3, 2/supN/ +1, 2/sup N/-1, 2/sup N +3}