Author:

Keywords:

Science & Technology, Technology, Engineering, Electrical & Electronic, Telecommunications, Engineering, Continuous phase modulation (CPM), frequency domain equalization (FDE), cyclic prefix, training sequence, precoding, PHASE, RECEIVERS, 0805 Distributed Computing, 0906 Electrical and Electronic Engineering, 1005 Communications Technologies, Networking & Telecommunications, 4006 Communications engineering, 4008 Electrical engineering, 4606 Distributed computing and systems software

Abstract:

To enable frequency domain equalization (FDE) for continuous phase modulation (CPM), both cyclicity of individual symbol blocks and phase continuity between different blocks have to be guaranteed. In this letter, we present new block constructions that use a subblock of data-dependent symbols, called intrafix, to satisfy both constraints for different CPM-FDE systems: using either a cyclic prefix or a training sequence (TS), both for precoded and nonprecoded CPM. The known symbols of a TS can be used to improve synchronization and channel estimation. Precoding can be applied to a certain class of CPM schemes to halve the bit error rate. © 2006 IEEE.