Paper Info
Title
Parameterized Cancellation of Partial-Band Partial-Block-Duration Interference for Underwater Acoustic OFDM
Abstract
Despite that underwater acoustic channels are well known to contain various interferences, research on interference mitigation in underwater acoustic communications has been very limited. In this paper, we deal with a wideband orthogonal frequency division multiplexing (OFDM) transmission in the presence of an external interference which occupies partially the signal band and whose time duration is shorter than the OFDM block. We parameterize the unknown interference waveform by a number of parameters assuming prior knowledge of the frequency band and time duration of the interference, and develop an iterative receiver, which couples interference detection via a generalized likelihood-ratio-test (GLRT), interference reconstruction and cancellation, channel estimation, and data detection. In addition to simulation results, we verify the receiver performance using data sets collected from two experiments. In both time-invariant and time-varying channels, the proposed iterative receiver achieves robust performance in the presence of unknown interference.
Year
DOI
Venue
2011
10.1109/TSP.2011.2180719
IEEE Transactions on Signal Processing
Keywords
DocType
Volume
underwater acoustics,ofdm,generalized likelihood ratio test,ofdm modulation,interference cancellation,estimation,iterative methods,interference,underwater acoustic communication,noise
Conference
60
Issue
ISSN
Citations 
4
1053-587X
12
PageRank 
References 
Authors
0.68
21
4
Name
Order
Citations
PageRank
Zhaohui Wang127218.91
Shengli Zhou23909262.81
Josko Catipovic3152.17
Peter Willett41962224.14