Synchronization of a TDMA-OFDM frequency hopping system

Börjesson, Per Ola (author): Lund University,Lunds universitet,Luleå tekniska universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH

Boucheret, Marie-Laure (author): Ecole National Superieure de Telecommunications, Site de Toulouse, Toulouse, France

Landström, Daniel (author): Lund University,Lunds universitet,Luleå tekniska universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH

Arenas, Julia Martinez (author): Ecole National Superieure de Telecommunications, Site de Toulouse

Ödling, Per (author): Lund University,Lunds universitet,Luleå tekniska universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH

(creator_code:org_t)

Piscataway, NJ : IEEE Communications Society, 1998
1998
English.
In: Pathway to a global wireless revolution. - Piscataway, NJ : IEEE Communications Society. - 0780343204 ; , s. 1290-1294

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Abstract Subject headings

In this paper 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 recently developed 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 implementational requirements 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.

By the author/editor: van de Beek, Jaa ...; Börjesson, Per O ...; Boucheret, Marie ...; Landström, Danie ...; Arenas, Julia Ma ...; Ödling, Per; show more...; Wilson, Sarah Ka ...; Östberg, Christe ...; Wahlqvist, Matti ...; show less...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Signal Processin ...

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