DocumentCode
2754043
Title
Reducing zero padding overhead in Multiband OFDM with time diversity
Author
Ray, Baijayanta ; Chakrabarti, Saswat ; Venkataraghavan, P.K.
Author_Institution
IIT Kharagpur, Kharagpur
fYear
2007
fDate
Oct. 30 2007-Nov. 2 2007
Firstpage
1
Lastpage
4
Abstract
In the current Multiband OFDM standard, (ECMA368), zero padding (ZPS) of length 28.9% of the OFDM symbol duration is appended to each symbol to tackle delay spread. We propose alternate strategies for the QPSK rates (that employ time diversity) in MBOFDM, which can reduce the ZPS overhead by 50% without any performance degradation. This enhances the transmission efficiency calculated in terms of the time required to transmit a packet of given length with a given data rate.
Keywords
OFDM modulation; ZPS; multiband OFDM; orthogonal frequency division multiplexing; time diversity; transmission efficiency; zero padding overhead; Bandwidth; Degradation; Delay effects; Diversity reception; Energy capture; OFDM modulation; Proposals; Quadrature phase shift keying; Telecommunication standards; Ultra wideband technology; multiband; ofdm; pdded; suffix; ultrawideband; uwb; zero;
fLanguage
English
Publisher
ieee
Conference_Titel
TENCON 2007 - 2007 IEEE Region 10 Conference
Conference_Location
Taipei
Print_ISBN
978-1-4244-1272-3
Electronic_ISBN
978-1-4244-1272-3
Type
conf
DOI
10.1109/TENCON.2007.4429001
Filename
4429001
Link To Document