In this paper, a novel switched hardware approach to angle of arrival (AoA) estimation in radio systems that signal using quadrature amplitude modulations (QAM) is presented. The proposed algorithm, namely constellation statistical pattern identification and overlap (CSP-IDO), is based on the comparison of the probability density functions of successive signal snapshots from antennas (asynchronous approach). Contrariwise, other AoA techniques such as differential methods, beamforming and MUSIC techniques are designed to acquire in parallel signals from the antennas (synchronous approach). CSP-IDO allows a significantly reduced hardware usage with respect to synchronous methods, without deteriorating precision. The proposed algorithm used with a time switched antenna approach leads to better performance in terms of overall hardware complexity, power consumption and possibly costs. Furthermore, CSP-IDO is robust to transmitter hardware impairments with respect to synchronous methods.

Single-Receiver Switched Opportunistic Approach to AoA Estimation in Hardware Impaired Scenarios

PAPAIZ, Andrea;TONELLO, Andrea
2019-01-01

Abstract

In this paper, a novel switched hardware approach to angle of arrival (AoA) estimation in radio systems that signal using quadrature amplitude modulations (QAM) is presented. The proposed algorithm, namely constellation statistical pattern identification and overlap (CSP-IDO), is based on the comparison of the probability density functions of successive signal snapshots from antennas (asynchronous approach). Contrariwise, other AoA techniques such as differential methods, beamforming and MUSIC techniques are designed to acquire in parallel signals from the antennas (synchronous approach). CSP-IDO allows a significantly reduced hardware usage with respect to synchronous methods, without deteriorating precision. The proposed algorithm used with a time switched antenna approach leads to better performance in terms of overall hardware complexity, power consumption and possibly costs. Furthermore, CSP-IDO is robust to transmitter hardware impairments with respect to synchronous methods.
2019
978-3-8007-4362-9
File in questo prodotto:
File Dimensione Formato  
1570307426 (7).pdf

non disponibili

Descrizione: Submitted Final manuscript
Tipologia: Documento in Pre-print
Licenza: Non pubblico
Dimensione 389.14 kB
Formato Adobe PDF
389.14 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/1098433
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
social impact