Timing synchronization in MIMO-OFDM systems
- WCU Author/Contributor (non-WCU co-authors, if there are any, appear on document)
- Farhan Farhan (Creator)
- Institution
- Western Carolina University (WCU )
- Web Site: http://library.wcu.edu/
- Advisor
- James Zhang
Abstract: OFDM (Orthogonal Frequency Division Multiplexing) provides a promising physical layer for
4G and 3GPP LTE Systems in terms of efficient use of bandwidth and high data rates. It is used
in several applications likeWiFi (IEEE 802.11n),WiMax (IEEE 802.16), Digital Audio Broadcasting
(DAB), Digital Video Broadcasting (DVB) and so on. OFDM suffers from inter-symbol
interference and inter-carrier interference in wireless and fading environments and it is important
to estimate and correct the start of OFDM symbol efficiently to reduce timing and frequency
offset errors. Synchronization issues in OFDM are crucial and can lead to certain amount of
information loss if they are not properly addressed. There are two modes of implementation
forDigital Video Broadcasting-Terrestrial (DVB-T) and this thesis implements the 2K mode. It
highlights the implementation of OFDM in DVB-T according to the European Telecommunications
Standards Institute (ETSI) . It mainly focuses on the timing offset problem present in
OFDM systems and its proposed solution using Cyclic Prefix (CP) as a modified Schmidl and
Cox’s (SC) algorithm. Simulations were performed to compare the different synchronization
methods with different amount of timing offsets and under different channel environments.
Timing synchronization in MIMO-OFDM systems
PDF (Portable Document Format)
15063 KB
Created on 3/1/2013
Views: 27032
Additional Information
- Publication
- Thesis
- Language: English
- Date: 2013
- Subjects
- Orthogonal frequency division multiplexing -- Data processing -- Design
- MIMO systems -- Design