Litcius/Paper detail

Joint Channel Estimation and Schmidl & Cox Synchronization for OCDM-Based Systems

Mateus de L. Filomeno, Lucas Giroto de Oliveira, Ândrei Camponogara, Axel Diewald, Thomas Zwick, Marcello L. R. de Campos, Moisés V. Ribeiro

2022IEEE Communications Letters19 citationsDOI

Abstract

This letter proposes a joint channel estimation and Schmidl & Cox synchronization for the orthogonal chirp-division multiplexing (OCDM) scheme. First, it is proven that a symbol composed of two identical halves in the Fresnel domain has two identical halves in the time domain, which is required by the considered synchronization technique. In sequel, a Fresnel-domain pilot symbol that enables joint channel estimation and synchronization is proposed, allowing overhead reduction and hence higher data rates. Finally, measurement and simulation results validate the obtained findings for both passband and baseband OCDM schemes.

Topics & Concepts

Computer scienceSynchronization (alternating current)Channel (broadcasting)Joint (building)Overhead (engineering)Orthogonal frequency-division multiplexingBasebandMultiplexingCode division multiple accessChirpTime domainElectronic engineeringAlgorithmControl theory (sociology)Bandwidth (computing)TelecommunicationsEngineeringOpticsArtificial intelligenceLaserArchitectural engineeringOperating systemPhysicsControl (management)Computer visiongraph theory and CDMA systemsWireless Communication Networks ResearchAdvanced Wireless Communication Techniques