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Information fusion is a very important technology which can use multisensor network data to get a better performance than single one; therefore, it is widely used in the filed of target recognition, target tracking, automatic control, decision making and so on. However, because of noise and interference, sometimes the sensors may obtain erroneous,(More)
In this paper we proposed a novel approach of blind channel equalizer for underwater Multiple-input multiple-output orthogonal frequency diversity multiple (MIMO-OFDM) system. convolutionnal encoder is applied on reference frequency bin and each block before entre the underwater MIMO-OFDM system. The transform imposed a correlation structure on the(More)
Orthogonal frequency division multiplexing (OFDM) systems are sensitive to channel variations caused by motility, which introduce inter-carrier interference (ICI). In this paper, a novel parallel interference cancellation (PIC) scheme is proposed to deal with ICI for OFDM in time-varying underwater acoustic channels (UWAC). The key idea is to estimate and(More)
Underwater wireless sensor networks (UWSNs) have become a new hot research area. However, due to the work dynamics and harsh ocean environment, how to obtain an UWSN with the best systematic performance while deploying as few sensor nodes as possible and setting up self-adaptive networking is an urgent problem that needs to be solved. Consequently, sensor(More)
An approach of channel frequency equalizer based on frequency domain least mean square (LMS) adaptive algorithm and block pilot is proposed recently. There have been tremendous demands for high speed data transmission in underwater acoustic communications. Orthogonal frequency division multiplexing (OFDM) has been introduced to high speed acoustic(More)
Underwater wireless sensor networks (UWSNs) represent an area of increasing research interest, as data storage, discovery, and query of UWSNs are always challenging issues. In this paper, a data access based on a guide map (DAGM) method is proposed for UWSNs. In DAGM, the metadata describes the abstracts of data content and the storage location. The center(More)
Retinal ganglion cells (RGCs), which exist in the inner retina, are the retinal neurons which can be damaged in the early stage of diabetic retinopathy (DR). Liraglutide, a glucagon-like peptide-1 (GLP-1) analog, exerts biological functions by binding the receptor (GLP-1R), the expression of which in RGC-5 cells was first shown by our team in 2012. It was(More)
Noise in water is very critical and may destroy the the OFDM based underwater acoustic communication system. The performance of pilot tones based channel estimation will not be the good choice under low SNRs. Complete frequency response of data channel is usually obtained by interpolating channel frequency response at pilot bits, such that the error of(More)