Adaptive iterative phase synchronization for serially concatenated continuous phase modulation

Author

Zhao, Qing ; Kim, Hasung ; Stuber, Gordon L.

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

1

fYear

2003

fDate

13-16 Oct. 2003

Firstpage

78

Abstract

An adaptive iterative detection structure is proposed for serially concatenated continuous phase modulation (SCCPM) on unknown channels. Joint phase synchronization and detection are implemented by means of a set of suboptimal adaptive soft-input soft-output (SISO) algorithms. The forward-only adaptive algorithms are found more robust than the forward-backward adaptive algorithms in tracking and acquiring a time-varying channel, due to rotational invariance of CPM trellis. Simulation results also show that the performance of the proposed forward-only adaptive iterative receiver closely approach that of iterative receivers with perfect knowledge of phase offset.

Keywords

concatenated codes; continuous phase modulation; radio receivers; synchronisation; time-varying channels; trellis codes; CPM trellis; adaptive iterative detection structure; adaptive iterative phase synchronization; adaptive soft-input soft-output algorithm; forward-only adaptive algorithm; serial concatenated convolutional code; serially concatenated continuous phase modulation; time-varying channel; Adaptive algorithm; Concatenated codes; Continuous phase modulation; Iterative algorithms; Iterative methods; Least squares approximation; Modulation coding; Phase detection; Phase estimation; Phase modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 2003. MILCOM '03. 2003 IEEE

Print_ISBN

0-7803-8140-8

Type

conf

DOI

10.1109/MILCOM.2003.1290081

Filename

1290081