Media type: E-Article Title: Serially concatenated continuous phase modulation with symbol interleavers: performance, properties and design principles Contributor: Xiao, Ming; Aulin, Tor M. imprint: Wiley, 2006 Published in: European Transactions on Telecommunications Language: English DOI: 10.1002/ett.1090 ISSN: 1124-318X; 1541-8251 Keywords: Electrical and Electronic Engineering Origination: Footnote: Description: <jats:title>Abstract</jats:title><jats:p>Serially concatenated continuous phase modulation (SCCPM) systems with symbol interleavers are investigated. The transmitted signals are disturbed by additive white Gaussian noise (AWGN). Compared to bit interleaved SCCPM systems, this scheme shows a substantial improvement in the convergence threshold at the price of a higher error floor. In addition to showing this property, we also investigate the underlying reason by error event analysis. In order to estimate bit error rate (BER) performance, we generalise traditional union bounds for a bit interleaver to this non‐binary interleaver. For the latter, both the order and the position of permuted non‐zero symbols have to be considered. From the analysis, some principal properties are identified. Finally, some design principles are proposed. Our paper concentrates on SCCPM, but the proposed analysis methods and conclusions can be widely used in many other systems such as serially concatenated trellis coded modulation (SCTCM) et cetera. Copyright © 2006 AEIT</jats:p>