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Indoor wireless localization has emerged as a key wireless network technology and has been used for a variety of applications. In this paper, we examine the possibility to use one RF-based fingerprint system for indoor wireless localization, and show that there is room for improvement in its location sensing approach. We propose an indoor wireless localization solution by improving a fingerprinting...
In wireless dual-hop decode-and-forward (DF) relaying networks, multiple relay stations (RS) and users construct a multiple-in-multiple-out (MIMO) broadcast channel (BC). Due to unpredictable decoding failure, scheduling the transmission for the decode-and-forward broadcast channel (DFBC) should depend on not only channel qualities but also the availability of errorless data at individual RSs. Based...
In this paper, a novel 2-degree-of-freedom hybrid magnetic bearing is presented which the static bias magnetic flux is produced by polarized permanent magnet ring and control magnetic flux is produced by currents in control windings. The mathematical models are deduced based on the introduction of working mechanism of hybrid magnetic bearing (HMB). A practical prototype bearingpsilas parameters are...
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