End-to-end delay estimation for multi-hop wireless networks with random access policySpringer Science and Business Media LLC - Tập 57 - Trang 1-13 - 2014
WanGuo Jiao, Min Sheng, Yan Shi, YuZhou Li
End-to-end delay analysis is an important element of network performance analysis in multi-hop wireless networks. In this paper, we propose an analytical model for estimating the end-to-end delay performance of wireless networks employing a random access policy for managing node’ transmissions on shared channels with time-varying capacity. To obtain the closed form expression, a new concept of res...... hiện toàn bộ
Leader-follower formation control without leader’s velocity informationSpringer Science and Business Media LLC - Tập 57 - Trang 1-12 - 2014
DongBin Shen, ZhenDong Sun, WeiJie Sun
In this paper, we consider the mobile robots formation control problem without direct measurement of the leader robot’s linear velocity. Two decentralized nonlinear algorithms are proposed, respectively, based on adaptive dynamic feedback and immersion & invariance estimation based second order sliding mode control methodologies. The main idea is to solve formation problem by estimating the leader...... hiện toàn bộ
An overview of transmission theory and techniques of large-scale antenna systems for 5G wireless communicationsSpringer Science and Business Media LLC - Tập 59 - Trang 1-18 - 2016
Dongming Wang, Yu Zhang, Hao Wei, Xiaohu You, Xiqi Gao, Jiangzhou Wang
To meet the future demand for huge traffic volume of wireless data service, the research on the fifth generation (5G) mobile communication systems has been undertaken in recent years. It is expected that the spectral and energy efficiencies in 5G mobile communication systems should be ten-fold higher than the ones in the fourth generation (4G) mobile communication systems. Therefore, it is importa...... hiện toàn bộ
Stability analysis for semi-Markovian switched stochastic systems with asynchronously impulsive jumpsSpringer Science and Business Media LLC - Tập 64 - Trang 1-13 - 2020
Xiaowu Mu, Zenghui Hu
The almost surely (a.s.) exponential stability is studied for semi-Markovian switched stochastic systems with randomly impulsive jumps. We start from the case that switches and impulses occur synchronously, in which the impulsive switching signal is a semi-Markovian process. For the case that switches and impulses occur asynchronously, the impulsive arrival time sequence and the types of jump maps...... hiện toàn bộ
Attribute augmented and weighted naive BayesSpringer Science and Business Media LLC - Tập 65 - Trang 1-14 - 2022
Huan Zhang, Liangxiao Jiang, Chaoqun Li
Numerous enhancements have been proposed to mitigate the attribute conditional independence assumption in naive Bayes (NB). However, almost all of them only focus on the original attribute space. Due to the complexity of real-world applications, we argue that the discriminative information provided by the original attribute space might be insufficient for classification. Thus, in this study, we ex...... hiện toàn bộ
A coordinate-transform based FFBP algorithm for high-resolution spotlight SAR imagingSpringer Science and Business Media LLC - Tập 58 - Trang 1-11 - 2015
ZeMin Yang, MengDao Xing, Lei Zhang, Zheng Bao
This paper proposes a coordinate-transform (CT) implementation for the fast factorized backprojection (FFBP) algorithm (CT-FFBP) to process high-resolution spotlight synthetic aperture radar (SAR) data. Unlike the FFBP utilizing two-dimensional image-domain interpolation for sub-aperture fusion, CT-FFBP finishes the image-projection using CT with the accommodation of chirp-z transform and circular...... hiện toàn bộ