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Low-complex frame s...
Low-complex frame synchronization in OFDM systems
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- van de Beek, Jaap (författare)
- Luleå tekniska universitet,Signaler och system
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- Sandell, Magnus (författare)
- Luleå tekniska universitet,Signaler och system
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- Isaksson, Mikael (författare)
- Telia Research AB, Luleå, Sweden
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- Börjesson, Per Ola (författare)
- Lund University,Lunds universitet,Luleå tekniska universitet,Signaler och system,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- Piscataway, NJ : IEEE Communications Society, 1995
- 1995
- Engelska.
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Ingår i: Gateway to the 21st century : record. - Piscataway, NJ : IEEE Communications Society. - 0780329554 ; , s. 982-986, s. 982-986
- Relaterad länk:
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https://ltu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Ämnesord
Stäng
- Orthogonal frequency-division multiplexing (OFDM) systems have gained an increased interest due to their use in wireless applications such as mobile communication systems. A novel data-based frame synchronization method for OFDM-systems is presented. OFDM frames are shown to contain sufficient information to synchronize a system without the use of pilots. The cyclic extension, preceding OFDM frames, is of decisive importance for this method. Based on only the sign bits of the in-phase and the quadrature components of the received OFDM signal, the maximum likelihood solution is derived. This solution basically consists of a correlator, a moving sum and a peak detector. The stability of the generated frame-clock is improved significantly by averaging over a few number of frames. Simulations show that this low-complex, averaging method can be used to synchronize an OFDM system on twisted pair copper wires and in slowly fading radio channels
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)
- kon (ämneskategori)
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