Channel Tracking and Equalization for UAV Communications

Pedro Pedrosa, Rui Dinis, Daniel Castanheira, Adão Silva, Atílio Gameiro

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

This chapter presents a channel tracking and equalization solution suitable for unmanned aerial vehicle (UAV) communications. Particularly and since the UAV channel is considered to be doubly-selective, we employ single-carrier modulations combined with frequency-domain equalization (SC-FDE). Accordingly, the equalization procedure is dealt by a low-complexity iterative frequency-domain equalizer based on the iterative block decision-feedback equalization (IB-DFE) and the tracking procedure is conducted by an extended Kalman filter (EKF). These systems are very efficient since they allow a very low density of training symbols, even for fast-varying channels. Additionally, only two consecutive training symbols are required to initialize the tracking procedure, thus ensuring low latency together with reduced channel estimation overheads.
Original languageEnglish
Title of host publicationIntegration of Unmanned Aerial Vehicles in Wireless Communication and Networks
Subtitle of host publicationUAVs and 5G
EditorsDushantha Nalin K. Jayakody, P. Muthuchidambaranathan, Rui Dinis, Stefan Panic
Place of PublicationCham
PublisherSpringer
Pages1-26
Number of pages26
ISBN (Electronic)978-3-031-03880-8
ISBN (Print)978-3-031-03879-2
DOIs
Publication statusPublished - 2023

Publication series

NameUnmanned System Technologies
PublisherSpringer
ISSN (Print)2523-3734
ISSN (Electronic)2523-3742

Keywords

  • Channel estimation
  • Channel tracking
  • Equalization
  • SC-FDE

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