Title
Gfdm - Generalized Frequency Division Multiplexing
Abstract
This paper presents the GFDM system, a generalized digital multi-carrier transceiver concept. GFDM is based on traditional filter bank multi-branch multi-carrier concepts which are now implemented digitally. Our GFDM approach exhibits some attractive features which are of particular importance for scenarios exhibiting high degrees of spectrum fragmentation. Spectrum fragmentation is a typical technical challenge of digital dividend use cases, exploiting spectrum white spaces in the TV UHF bands which are located in close proximity to allocated spectrum. Specifically, the GFDM features are a lower PAPR compared to OFDM, a ultra-low out-of-band radiation due adjustable Tx-filtering and last but not least a block-based transmission using cyclic prefix insertion and efficient FFT-based equalization. GFDM enables frequency and time domain multi-user scheduling comparable to OFDM and provides an efficient alternative for white space aggregation even in heavily fragmented spectrum regions.
Year
DOI
Venue
2009
10.1109/VETECS.2009.5073571
2009 IEEE VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5
Keywords
Field
DocType
time domain,transceivers,tv,ofdm,quadrature amplitude modulation,out of band,use case,spectrum,tail,bit error rate,frequency division multiplexing,white spaces,filter bank,bandwidth,digital filters
White spaces,Cyclic prefix,Equalization (audio),Computer science,Frequency-division multiplexing,Filter bank,Electronic engineering,Bandwidth (signal processing),Orthogonal frequency-division multiplexing,Bit error rate
Conference
Citations 
PageRank 
References 
111
10.47
2
Authors
3
Search Limit
100111
Name
Order
Citations
PageRank
Gerhard Fettweis13553410.41
Marco Krondorf216117.27
Steffen Bittner318518.70