Synchronization of a TDMA-OFDM frequency hopping system

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

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

Details

Authors
  • 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
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Electrical Engineering, Electronic Engineering, Information Engineering
Original languageEnglish
Title of host publication[Host publication title missing]
Pages1290-1294
Volume2
Publication statusPublished - 1998
Publication categoryResearch
Peer-reviewedYes
EventIEEE Vehicular Technology Conference, 1998 - Ottawa, Canada
Duration: 1998 May 181998 May 21

Publication series

Name
Volume2

Conference

ConferenceIEEE Vehicular Technology Conference, 1998
CountryCanada
CityOttawa
Period1998/05/181998/05/21