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Passive localization is fundamental for many applications such as activity monitoring and real-time tracking. Existing received signal strength (RSS)-based passive localization approaches have been proposed in the literature, which depend on dense deployment of wireless communication nodes to achieve high accuracy. Thus, they are not cost-effective and scalable. This paper proposes the RSS distribution-based...
This paper presents the design procedures of an unity-power-factor AC-DC power converter for wireless power transfer application. This newly proposed AC-DC converter consists of two stages: the PFC front stage uses LC series resonant circuit to perform power factor conditioning and the second stage uses a DC-DC converter to regulate the output voltage. New equations to describe the input impedance...
Multicast over MPLS networks can merge the their advantages, but is still accompanied many problems mainly on scalability. In this paper, we propose an architecture for deploying bidirectional multicast shared trees in MPLS networks (BIDIR-MMST). Tree manager server (TMS) collects the positions of all multicast group members and computes the topology of BIDIR-MMST, then sends messages to routers constructing...
In this paper, we investigate techniques for optimizing the coexistence performance of providing WiMAX (IEEE802.16a) from High Altitude Platforms (HAPs) and terrestrial deployments in shared 3.5 GHz frequency bands are presented. The paper will show that it is effective to provide WiMAX services from HAPs with optimized performance by appropriate choice of parameters, including varying the HAP deployment...
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