crta
Hrvatska znanstvena Sekcija img
bibliografija
3 gif
 Home
 About the project
 FAQ
 Contact
4 gif
Browsing
Basic search
Advanced search
Statistical data
Other bibliographies
Similar projects
 Catalogues and databases

Bibliographic record number: 836315

Journal

Authors: Vlaović, Jelena; Rimac-Drlje, Snježana; Horvat, Goran
Title: Overview of OFDM Channel Estimation Techniques for DVB-T2 Systems
( Overview of OFDM Channel Estimation Techniques for DVB-T2 Systems )
Source: Proceedings of 1st International Conference on Smart Systems and Technologies 2016Osijek :
Meeting: International Conference on Smart Systems and Technologies 2016
Location and date: Osijek, Hrvatska, 12-14.10.2016.
Keywords: OFDM; channel estimation; digital television; DVB-T; DVB-T2; pilot-based methods; MIMO
( OFDM; channel estimation; digital television; DVB-T; DVB-T2; pilot-based methods; MIMO )
Abstract:
Systems that are modeled according to DVB-T and DVB-T2 standards use Orthogonal Frequency Division Multiplexing (OFDM) as a modulation scheme. OFDM uses N parallel streams to ensure high-rate data transmission. Distinct carriers are used to transmit data streams. In OFDM subcarriers are orthogonal in order to ensure that receiver can distinguish separate signals carried by different subcarriers. Generally there are three approaches in estimating channel transfer function in systems that use OFDM, pilot symbols, scattered pilot tones and eigenvalue-decomposition-based methods. Pilot symbols are mainly used for initial channel estimation. Scattered pilot tones are used to help track changes in channels over time. The complexity of the first two methods can be reduced with the eigenvalue-decomposition-based methods. In recent studies multiple channel estimation techniques, mostly based on pilot patterns stemmed from initial estimation techniques. This paper gives an overview of the standard channel estimation methods used in OFDM and recently developed improved channel estimation methods.
Type of meeting: Predavanje
Type of presentation in a journal: Full-text (1500 words and more)
Type of peer-review: International peer-review
Original language: eng
Category: Znanstveni
Research fields:
Electrical engineering
Contrib. to CROSBI by: Jelena Vlaović (jelena.vlaovic@etfos.hr), 3. Lis. 2016. u 15:50 sati



Print version   za tiskati


upomoc
foot_4