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Synchronization of a TDMA-OFDM frequency hopping system

Författare

  • Jan-Jaap van de Beek
  • Per Ola Börjesson
  • Marie-Laure Boucheret
  • Daniel Landström
  • Julia Martinez Arenas
  • Per Ödling
  • Sarah Kate Wilson
  • Christer Ostberg
  • Mattias Wahlqvist

Summary, in English

We present a time division multiple access-orthogonal frequency division multiplexing (TDMA-OFDM)-based radio interface proposal for the Universal Mobile Telecommunication System (UMTS). We focus on synchronization and present an implementable algorithm for the tracking of the mobiles' time and frequency offsets at the base station in the uplink. This algorithm is based on estimation methods that use redundancy introduced by the cyclic prefix. A modified maximum likelihood (ML) estimator for the additive white Gaussian noise (AWGN) channel is used to meet both the implementational and performance requirements for frequency-selective fading multiuser environments. Simulation results for a typical UMTS mobile channel environment show that the uncoded symbol error rate of a coherently modulated system using our synchronization scheme is virtually indistinguishable from that of a system with no time and frequency offset

Publiceringsår

1998

Språk

Engelska

Sidor

1290-1294

Publikation/Tidskrift/Serie

[Host publication title missing]

Volym

2

Dokumenttyp

Konferensbidrag

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

IEEE Vehicular Technology Conference, 1998

Conference date

1998-05-18 - 1998-05-21

Conference place

Ottawa, Canada

Status

Published

ISBN/ISSN/Övrigt

  • ISBN: 0-7803-4320-4