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1. (WO2017037623) MULTICARRIER COMMUNICATION SYSTEM FOR DOUBLY SELECTIVE CHANNELS USING VIRTUAL TRAJECTORIES RECEIVER

Pub. No.:    WO/2017/037623    International Application No.:    PCT/IB2016/055184
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Thu Sep 01 01:59:59 CEST 2016
IPC: H04L 25/03
H04L 27/26
Applicants: CENTRO DE INVESTIGACIÓN Y DE ESTUDIOS AVANZADOS DEL INSTITUTO POLITÉCNICO NACIONAL
Inventors: PEÑA CAMPOS, Fernando
KONTOROVICH MAZOVER, Valeri
PARRA MICHEL, Ramón
Title: MULTICARRIER COMMUNICATION SYSTEM FOR DOUBLY SELECTIVE CHANNELS USING VIRTUAL TRAJECTORIES RECEIVER
Abstract:
A modified orthogonal frequency-division multiplexing (OFDM) communication system based on virtual decomposition of the channel is proposed. The system is fully compatible with standard OFDM transmitters and maintains several blocks of standard OFDM receivers. The proposed approach achieves also incoherent reception of multicarrier signals even with a simple autocovariance DPSK detector. This novel system substantially surpasses the performance of current approaches while requiring low computational complexity. Two preferred embodiments are described; one with coherent reception using pilot signals, and the second with incoherent receiver of differentially encoded signals.