Yuanzhi He

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In this paper, the quality of service (QoS) metrics and user demand model are established in high altitude platforms (HAPs) broadband communication network. A methodology of mobile base station placement is proposed with QoS and user demand guarantee for the first time. Besides, the HAPs placement optimization framework is established by optimizing the(More)
The high altitude platform (HAP) is an important communication platform for cloud storage in the next generation internet. The Multiple-input multiple-output (MIMO) techniques provide the significant diversity and multiplexing gain, which can improve the network performance effectively. In this paper, a virtual MIMO model is proposed by networking the(More)
Pituitary tumor is an intracranial tumor; because of the development of neuroimaging technology in recent years, morbidity is likely to increase. Evidence showed impaired cognitive ability of patients with pituitary adenoma. There is evidence that neurobehavioral disorders are common in pituitary adenoma patients. This disorder is because of the cognitive(More)
Distributed satellite cluster network can provide a flexible space scenario with guaranteed quality of service (QoS) by making different kinds of satellites to accomplish missions collaboratively. In such a multi-satellite heterogeneous system, reasonable power control scheme can effectively improve the system performance. This paper analyzes the(More)
Multibeam satellite communication systems (MSC-Ss) have been applied to provide efficiently power and bandwidth utilization for broadband service by employing frequency reuse. However, bandwidth for each beam is divied by frequency reuse which is used to mitigate the adjacent beam interference. Recently researchers resorted precoding as a novel interference(More)
This paper investigates the performance of integrated wireless sensor and multibeam satellite networks (IWSMSNs) under terrestrial interference. The IWSMSNs constitute sensor nodes (SNs), satellite sinks (SSs), multibeam satellite and remote monitoring hosts (RMHs). The multibeam satellite covers multiple beams and multiple SSs in each beam. The SSs can be(More)
The relationship of structural and functional brain damage and disorders of consciousness (DOC) for diffuse axonal injury (DAI) is still not fully explored. We employed diffusion tensor imaging (DTI) and resting-state fMRI (RS-fMRI) to examine the changes of resting activations and white matter (WM) integrity for DAI with DOC. WM damages were observed in(More)
An investigation into the energy-efficient transmission strategies and Integrated High altitude platform/Satellite (IHS) architecture in wireless sensor networks is presented. In a slow flat Rician fading, an innovative adaptive algorithm for the energy-efficient path selection is given. The simulation results validate the effectiveness of the proposed(More)