Paper Info
Title
Blind channel estimation based on Second Order Statistics for IFDMA
Abstract
Abstract—In this paper, the Interleaved Frequency Division Multiple Access (IFDMA) scheme,is considered,as a special case of Discrete Fourier Transform,(DFT)-precoded Orthogonal Frequency,Division Multiple Access (OFDMA) with interleaved subcarrier,allocation. The redundancy,that is characteristic for an IFDMA-signal is exploited in order to estimate the channel without pilot symbols and, thus, overcome the drawback of increased pilot symbol,overhead,that arises for IFDMA-systems. Two well-known,blind channel,estimation,algorithms,based,on Second Order Statistics (SOS) are adapted,to the application,in an IFDMA-system and,compared,in terms,of performance,and convergence. Further on, the influence of multi-user transmission is illustrated for the two,proposed,blind,channel,estimation algorithms,and,the differences between,multi-user uplink,and downlink,transmission,in terms,of channel,estimation,perfor- mance,are investigated and emphasized,by numerical,results.
Year
DOI
Venue
2008
10.1109/PIMRC.2008.4699709
Cannes
Keywords
Field
DocType
OFDM modulation,channel estimation,discrete Fourier transforms,frequency division multiple access,statistical analysis,IFDMA,OFDMA,blind channel estimation,discrete Fourier transform,interleaved frequency division multiple access scheme,interleaved subcarrier allocation,multi-user transmission,pilot symbol overhead,precoded orthogonal frequency division multiple access,second order statistics
Subcarrier,Computer science,Communication channel,Orthogonal frequency-division multiple access,Redundancy (engineering),Discrete Fourier transform,Frequency-division multiple access,Statistics,Orthogonal frequency-division multiplexing,Telecommunications link
Conference
ISBN
Citations 
PageRank 
978-1-4244-2644-7
2
0.40
References 
Authors
9
2
Name
Order
Citations
PageRank
Anja Sohl1122.54
Anja Klein223218.18