60-GHz millimeter-wave radio: principle, technology, and new Results
EURASIP Journal on Wireless Communications and Networking
Comparison of OQPSK and CPM for communications at 60 GHz with a nonideal front end
EURASIP Journal on Wireless Communications and Networking
Low-complexity linear frequency domain equalization for continuous phase modulation
IEEE Transactions on Wireless Communications
Frequency-domain equalization for continuous phase modulation
IEEE Transactions on Wireless Communications
Frequency domain equalization for single-carrier broadband wireless systems
IEEE Communications Magazine
Novel block constructions using an intrafix for CPM with frequency domain equalization
IEEE Transactions on Wireless Communications
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Frequency domain equalization (FDE) of continuous phase modulations (CPM) has been thoroughly investigated lately. To enable this low-complexity FDE, all known techniques use a cyclic prefix (CP). However, using a training sequence (TS) of known symbols instead of a CP offers some advantages: the additional known symbols can be used to improve synchronization and channel estimation, with the same performance of a CP. Nevertheless, using a TS for CPM-FDE is not trivial because the memory in a CPM waveform has to be taken into account to guarantee cyclicity and phase continuity after insertion of the TS into a block of input symbols. In this paper, we therefore propose a technique for constructing a TS for CPMFDE. Simulation results in a 60 GHz environment show that the proposed technique satisfies all requirements. The 60 GHz case is chosen because CPM with FDE has recently been proposed for communications at 60 GHz and the latest IEEE and ECMA standards for these frequencies mandate the use of a TS rather than a CP.