Paper Info
Title
Performance Evaluation of Fast Frequency Hopping OFDM over UWB Channels
Abstract
The performance of fast frequency hopping OFDM (FFH-OFDM) is evaluated under UWB channels with several types of receivers. It is shown that FFH-OFDM has a significant improvement over a conventional OFDM system. The receiver algorithms for the FFH-OFDM considered in this paper are zero-forcing (ZF), minimum mean square error (MMSE), QR- MMSE and sorted QR-MMSE (SQR-MMSE). Soft-output metric computation is proposed for the coded case that yields further gain over hard-output decision. The simulation results show the advantage of QR-MMSE and sorted QR-MMSE receivers in the uncoded case while MMSE has better performance for the coded case with a convolutional coding scheme. The insight on the performance advantage of MMSE over QR-based receivers for the coded case is also provided.
Year
DOI
Venue
2009
10.1109/VETECS.2009.5073787
VTC Spring
Keywords
Field
DocType
OFDM modulation,channel coding,convolutional codes,frequency hop communication,least mean squares methods,modulation coding,ultra wideband communication,MMSE,QR-based receiver,UWB channels,convolutional coding scheme,fast frequency hopping OFDM,minimum mean square error,orthogonal frequency division multiplexing system,soft-output metric computation,zero-forcing receiver algorithm
Convolutional code,Computer science,Matrix decomposition,Minimum mean square error,Communication channel,Electronic engineering,Decoding methods,Frequency-hopping spread spectrum,Orthogonal frequency-division multiplexing,Phase-shift keying
Conference
ISSN
ISBN
Citations 
1550-2252 E-ISBN : 978-1-4244-2517-4
978-1-4244-2517-4
3
PageRank 
References 
Authors
0.60
6
4
Name
Order
Citations
PageRank
Poramate Tarasak1538.29
Zhiwei Lin230.60
Xiaoming Peng39520.72
Francois P. S. Chin433047.00