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- Xiaohu Tang, Tor Helleseth, Lei Hu, Wenfeng Jiang
- SSC
- 2007

- Xiangyong Zeng, Lei Hu, Wenfeng Jiang, Qin Yue, Xiwang Cao
- Finite Fields and Their Applications
- 2010

- Xiangyong Zeng, Lei Hu, Wenfeng Jiang, Qin Yue, Xiwang Cao
- ArXiv
- 2009

1. Faculty of Mathematics and Computer Science, Hubei University, Wuhan, 430062, China E-mail: xzeng@hubu.edu.cn 2. State Key Laboratory of Information Security, Graduate School of Chinese Academy of Sciences, Beijing, 100049, China E-mail:{hu,wfjiang}@is.ac.cn 3. Department of Math, School of Sciences Nanjing University of Aeronautics and Astronautics,… (More)

- T. Helleseth, Lei Hu, A. Kholosha, Xiangyong Zeng, Nian Li, Wenfeng Jiang
- IEEE Transactions on Information Theory
- 2009

This paper follows the recent work of Helleseth, Kholosha, Johansen, and Ness to study the cross correlation between an m -sequence of period 2<sup>m</sup> - 1 and the d-decimation of an m-sequence of a shorter period 2<sup>n</sup> - 1 for an even number m = 2n. Assuming that d satisfies d(2<sup>l</sup> + 1) = 2<sup>i</sup> (mod 2<sup>n</sup> - 1) for some… (More)

- Hongliang Gu, Yuanchun Shi, Yu Chen, Bibo Wang, Wenfeng Jiang
- GPC
- 2006

For supporting location-aware computing in indoor environments, the location sensing/positioning system not only need to provide objects’ precise location, but also should own such characteristics as: isotropy and convenience for portability. In this paper, we present an indoor location sensing system, Cicada. This System is based on the TDOA (time… (More)

- Wenfeng Jiang
- 2005

For a truncated quiver algebra over a field of arbitrary characteristic, its Hochschild cohomology is calculated. Moreover, it is shown that its Hochschild cohomology algebra is finitedimensional if and only if its global dimension is finite if and only if its quiver has no oriented cycles. MSC(2000): 16E40, 16E10, 16G10

- Xiaojie Chen, Yuanchun Shi, Wenfeng Jiang
- 21st International Conference on Advanced…
- 2007

This paper presents a novel multimodal system to track the participants and identify the active speaker in the smart meeting room. Indoor localization system, Cicada, is used to obtain the location and identity information of the participants. Cicada, developed by our research group, can provide much higher localization precision than most visual tracking… (More)

- Wenfeng Jiang, Lei Hu, Xiaohu Tang, Xiangyong Zeng
- Applicable Algebra in Engineering, Communication…
- 2008

A new family of binary sequences of period 4(2 n −1) with low correlation is constructed for integer n = em. Especially, we obtain a new family with family size 2 n and maximum nontrivial correlation magnitude $${2^{n+3\over 2}+4}$$ for odd m and e = 1. Each sequence in the family is constructed by the interleaving of four GKW-like sequences and a perfect… (More)

- Lei Hu, Xiangyong Zeng, Nian Li, Wenfeng Jiang
- IEEE Trans. Information Theory
- 2009

In this paper, we follow the recent work of Helleseth, Kholosha, Johanssen and Ness to study the cross correlation between an m-sequence of period 2 − 1 and the d-decimation of an m-sequence of shorter period 2 − 1 for an even number m = 2n. Assuming that d satisfies d(2 + 1) = 2(mod 2 − 1) for some l and i, we prove the cross correlation takes exactly… (More)

- Xiaohu Tang, Tor Helleseth, Lei Hu, Wenfeng Jiang
- IEEE Transactions on Information Theory
- 2009

In this paper, we present two optimal binary families of sequences of length 2<sup>n</sup>-1 and 2(2<sup>n</sup>-1) for odd integer n. They are obtained as the images of proposed optimal quaternary sequences under the most significant bit and the Gray maps. The first family has 2<sup>n</sup>+1 sequences of length 2<sup>n</sup>-1 and the identical… (More)