Title :
Serially Concatenated Continuous Phase Modulation with Extended BCH Codes
Author :
Amat, Alexandre Graell i ; Nour, C.A. ; Douillard, Catherine
Author_Institution :
GET/ENST Bretagne, Brest
Abstract :
In this paper, serially concatenated continuous phase modulation (CPM) is considered. A concatenated structure consisting of a short extended BCH code as outer code is proposed, targeting a wide choice of spectral efficiencies, ranging from 0.75 to 2.25 bit/s/Hz. A two-step design procedure combining EXIT charts analysis and union bound techniques is used to optimize the association of the outer code and the CPM. An exhaustive study of several quaternary and octal CPM schemes is performed. The proposed concatenated structure offers very low error floors (frame error rate below 10-6) and good performance in the waterfall region for all spectral efficiencies. A significant improvement with respect to previous concatenated CPM schemes is shown. The envisaged application of the proposed scheme is the return link of broadband satellite communications.
Keywords :
BCH codes; phase modulation; EXIT charts analysis; broadband satellite communications; serially concatenated continuous phase modulation; two-step design procedure; union bound techniques; Bandwidth; Concatenated codes; Continuous phase modulation; Convolutional codes; Design optimization; Error analysis; Forward error correction; Helium; Iterative decoding; Satellite communication;
Conference_Titel :
Information Theory for Wireless Networks, 2007 IEEE Information Theory Workshop on
Conference_Location :
Solstrand
Print_ISBN :
978-1-4244-1200-6
Electronic_ISBN :
978-1-4244-1200-6
DOI :
10.1109/ITWITWN.2007.4318058
