Detection of Single Versus Multiple Antenna Transmission Systems Using Pilot Data

Thakshila Wimalajeewa, Pramod Kumar Varshney, Wei Su

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this paper, we consider the problem of classifying the transmission system when it is not known a priori whether the transmission is via a single antenna or multiple antennas. The receiver is assumed to be employed with a known number of antennas. In a data frame transmitted by most multiple input multiple output (MIMO) systems, some pilot or training data are inserted for symbol timing synchronization and estimation of the channel. Our goal is to perform MIMO transmit antenna classification using this pilot data. More specifically, the problem of determining the transmission system is cast as a multiple hypothesis testing problem where the number of hypotheses is equal to the maximum number of transmit antennas. Under the assumption of receiver having the exact knowledge of pilot data used for timing synchronization and channel estimation, we consider maximum likelihood (ML) and correlation test statistics to classify the MIMO transmit system. When only probabilistic knowledge of pilot data is available at the receiver, a hybrid ML-based test statistic is constructed using the expectation-maximization algorithm. The performance of the proposed algorithms is illustrated via simulations and comparative merits of different techniques in terms of the computational complexity and performance are discussed.

Original languageEnglish (US)
Article number7544507
Pages (from-to)159-171
Number of pages13
JournalIEEE Transactions on Signal and Information Processing over Networks
Volume3
Issue number1
DOIs
StatePublished - Mar 1 2017

Keywords

  • Blind signal recognition
  • correlation detector
  • GLRT detector
  • MIMO
  • ML estimation
  • SIMO

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems
  • Signal Processing

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