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A time and frequenc...
A time and frequency synchronization scheme for multiuser OFDM
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- van de Beek, Jan-Jaap (författare)
- Nokia Svenska AB, Stockholm, Sweden
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- Börjesson, Per Ola (författare)
- Lund University,Lunds 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,Department of Applied Electronics, Lund University, Lund, Sweden
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- Boucheret, Marie-Laure (författare)
- Ecole Nationale Supérieure des TéIécommunications, Toulouse, France
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- Landström, Daniel (författare)
- Lund University,Lunds 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,Department of Applied Electronics, Lund University, Lund, Sweden
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- Arenas, Julia Martiez (författare)
- Ericsson Radio Systems AB, Stockholm, Sweden
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- Ödling, Per (författare)
- Lund University,Lunds 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,Department of Applied Electronics, Lund University, Lund, Sweden
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- Östberg, Christer (författare)
- Ericsson Mobile Communications AB, Lund, Sweden
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- Wahlqvist, Mattias (författare)
- Ericsson Radio Systems AB, Stockholm, Sweden
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- Wilson, Sarah Kate (författare)
- Luleå tekniska universitet
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 1999
- 1999
- Engelska.
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Ingår i: IEEE Journal on Selected Areas in Communications. - : Institute of Electrical and Electronics Engineers (IEEE). - 0733-8716 .- 1558-0008. ; 17:11, s. 1900-1914
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Abstract
Ämnesord
Stäng
- We present a multiuser synchronization scheme for tracking the mobile's uplink time and frequency offsets. It uses the redundancy introduced by the cyclic prefix and does not need additional pilots. We show performance results of an orthogonal frequency division multiplexing (OFDM)-based radio interface based on universal mobile telecommunication system (UMTS) parameters. For a UMTS-typical mobile channel environment, the performance of a coherent system employing the scheme is virtually indistinguishable from the performance of a perfectly synchronized system. In a differentially modulated system, synchronization errors decrease the system performance by about 0.7 dB compared to a perfectly synchronized system. Index Terms - Communication system, delay estimation, frequency estimation, multicarrier, multiuser system, orthogonal frequency division multiplexing (OFDM), synchronization, universal mobile telecommunication system (UMTS).
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Signalbehandling
- Signal Processing
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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