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Low-complex frame synchronization in OFDM systems
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.ORCID iD: 0000-0001-8647-436X
Luleå tekniska universitet.
Telia Research AB.
Luleå tekniska universitet.
1995 (English)In: Gateway to the 21st century : record: 1995 Fourth IEEE International Conference on Universal Personal Communications, Meiji Kinenkan, Tokyo, Japan, November 6 - 10, 1995, Piscataway, NJ: IEEE Communications Society, 1995, 982-986 p.Conference paper, Published paper (Refereed)
Abstract [en]

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

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 1995. 982-986 p.
National Category
Signal Processing
Research subject
Signal Processing
Identifiers
URN: urn:nbn:se:ltu:diva-29896DOI: 10.1109/ICUPC.1995.497156Local ID: 384769d0-dfd3-11dc-9e29-000ea68e967bISBN: 0-7803-2955-4 (print)OAI: oai:DiVA.org:ltu-29896DiVA: diva2:1003123
Conference
IEEE International Conference on Universal Personal Communications : 06/11/1995 - 10/11/1995
Note
Godkänd; 1995; 20080220 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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