A time-domain control signal detection technique for OFDM

Saheed Adegbite, Scott McMeekin, Brian Stewart

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Abstract

Transmission of system-critical control information plays a key role in efficient management of limited wireless network resources and successful reception of payload data information. This paper uses an orthogonal frequency division multiplexing (OFDM) architecture to investigate the detection performance of a time-domain approach used to detect deterministic control signalling information. It considers a type of control information chosen from a finite set of information, which is known at both transmitting and receiving wireless terminals. Unlike the maximum likelihood (ML) estimation method, which is often used, the time-domain detection technique requires no channel estimation and no pilots as it uses a form of time-domain correlation as the means of detection. Results show that when compared with the ML method, the time-domain approach improves detection performance even in the presence of synchronisation error caused by carrier frequency offset.
Original languageEnglish
Number of pages10
JournalEURASIP Journal on Wireless Communications and Networking
Early online date19 Jul 2016
DOIs
Publication statusPublished - Jul 2016

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Keywords

  • Carrier Frequency Offset (CFO
  • Channel Estimation
  • Selective Control Information,
  • Maximum Likelihood (ML)
  • Orthogonal Frequency Division Multiplexing (OFDM)
  • Time-domain Correlation

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