title: Simple and efficient frequency offset tracking and carrier phase recovery algorithms in single carrier transmission systems.
abstract: In this paper, we propose a low-complexity and efficient carrier recovery algorithm for single carrier transmission systems that is capable of tracking frequency offset (FO) variations. Working as a FO tracking estimator, the algorithm demonstrates good accuracy in simulation and a FO drift of up to 200 MHz/μs can be compensated with minimal degradation in a QPSK system. In 112 Gb/s dual polarization (DP) QPSK experiments, the algorithm recovers a data sequence having >80 MHz of FO drift within 250 μs, providing better performance than a one-time estimator. In a regime that utilizes parallel processing of the data, we further demonstrate FO tracking and carrier phase recovery (CPR) using only one of the streams in a parallelized configuration, and we apply the carrier information to recover neighbouring streams directly. Consequently, the complexity of both the FO tracking and the CPR is further reduced.
authors.affiliation: Department of Electrical and Computer Engineering, McGill University, Montreal, QC, H3A 2A7, Canada. meng.qiu@mail.mcgill.ca
authors.forename: Meng
authors.initials: M
authors.lastname: Qiu
authors.forename: Qunbi
authors.initials: Q
authors.lastname: Zhuge
authors.forename: Xian
authors.initials: X
authors.lastname: Xu
authors.forename: Mathieu
authors.initials: M
authors.lastname: Chagnon
authors.forename: Mohamed
authors.initials: M
authors.lastname: Morsy-Osman
authors.forename: David V
authors.initials: DV
authors.lastname: Plant
mesh_terms: D000465:Algorithms; D016477:Artifacts; D012815:Signal Processing, Computer-Assisted; D013685:Telecommunications