Li Jianping

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Iterative decoding algorithm is an effective method to improve the performance of system receiver. It has been used in Bit-interleaved coded modulation (BICM) for overcoming the drawback of BICM over AWGN channels. Since the iterative algorithm increase the complexity of the receiver and incur larger delay, a modified iterative decoding scheme with variable(More)
Histone deacetylase (HDAC) overactivity in colorectal cancer (CRC) promotes cancer progression. In the current study, we showed that 4SC-202, a novel class I HDAC inhibitor (HDACi), potently inhibited survival and proliferation of primary human colon cancer cells and established CRC lines (HT-29, HCT-116, HT-15, and DLD-1). Yet, the same 4SC-202 treatment(More)
This paper proposes an improved stopping criterion based on cross-entropy (CE) for BICM-ID embedded turbo codes. It can yield good BER performance with lower complexity. The iterative decoding scheme for turbo iterative receiver, which iterative number is fixed, can achieve good BER performance. The stopping criterion based on CE has been adopted to(More)
This paper proposes a minimum mean square error (MMSE)-based algorithm for semi-blind estimation of a complex fading channel matrix. By approximating the channel product matrices to channel autocorrelation matrix, which is gained from the covariance matrix of the received data, a novel semi-blind algorithm named MMVE (MMSE to EVD technique) is rebuilt. The(More)
Iterative decoding is an effective method to overcome the drawback of Bit-interleaved coded modulation (BICM) over AWGN channels. Since the performance improvement will be very little after sufficient iterations, several stopping criteria have been devised to stop the unnecessary iterations. However, all the existing stopping criteria are designed for(More)
Scientific issues relevant to interactions between aerosols and the Asian monsoon climate were discussed and evaluated at the 33rd " Forum of Science and Technology Frontiers " sponsored by the Department of Earth Sciences at the Chinese Academy of Sciences. Major results are summarized in this paper. The East Asian monsoon directly affects aerosol(More)
In order to improve the dynamics behavior of roll gimbal in an aerial three-axis ISP system while minimizing the mass and external size, the modal analysis with Finite Element Method (FEM) was carried out. Based on the modal analysis results, the structure of roll gimbal was optimized. Compared to the original structure, the dynamics performance of the(More)
A novel algorithm is proposed and studied for QR decomposition-based scheme in the context of semi-blind Multi-Input Multi-Output (MIMO) channel estimation. Specifically, the flat-fading MIMO channel matrix H can be decomposed as a down-triangular matrix R and a unitary rotation matrix Q. The matrix R is estimated blindly from only received data by using(More)
The arbuscular mycorrhizal (AM) status of 67 plant species in a savanna community in the hot, dry valley of Jinsha River, southwest China was surveyed. It was found that about 95% of the plant species formed AM and 5% possibly formed AM. The composition of AM fungi (AMF) in the rhizosphere soils was also investigated. The AMF spore density ranged from 5 to(More)