In current widely used Orthogonal Fre- quency Division Multiplexing (OFDM) systems, where localization. Most of the existing radio frequency (RF)- based indoor localization are based on the RSSI val- data are modulated on multiple subcarriers in different frequencies and transmitted simultaneously, ...
Compared with RSS, CSI can estimate the channel characteristic information on each subcarrier by orthogonal frequency-division multiplexing (OFDM) technology. The frequency attenuation variation of the WiFi channel can be better described to reduce the influence of multipath components and narrowband ...
M. Kassas, (2020)"Assessing real 5G signals for opportunistic navigation," in Proc. 33rd Int. Tech. Meeting Satell. Division Inst. Navigat. (ION GNSS+), pp. 2548–2559. https://www.ion.org/publications/ abstract.cfm?articleID=17702. Al...
Each set of CSIs characterizes the amplitude and phase of orthogonal frequency division multiplexing (OFDM) subcarriers. Therefore, CSI has better static stability and dynamic sensitivity [13]. Many researchers have begun to use CSI in indoor localization [14–16]. Fingerprints of different ...
Although this technique can reduce statistical errors caused by multi-person overlap, it still poses problems determining image region division and sliding window size. The regression network-based people counting technique [15] using a proven regression network counts the number of people in an image...
OFDM Orthogonal Frequency-Division Multiplexing PCA Principal Component Analysis PSD Power Spectral Density RNN Recurrent Neural Network SVD Singular Value Decomposition SVM Support Vector Machine ToF Time of Flight TX Transmitter UDP User Datagram Protocol References Haagsma, J.A.; Olij, B.F.; Majdan,...
Statement 122—Exposed DC Power Wire Warning Statement 379—Flash Card Connection Warning Statement 381—Sealed Device Degradation Statement 397—Failure to Securely Tighten Captive Screws Statement 1001—Work During Lightning Activity Statement 1003—DC Power Disconnection...
Special Agent Garrett Croon, a media coordinator for the FBI’s Chicago Division, however, said that while the Rosemont Police Department may have closed its case, it’s not uncommon to reopen an investigation if either department were to get a lead. “It’s always ongoing b...
Special Agent Garrett Croon, a media coordinator for the FBI’s Chicago Division, however, said that while the Rosemont Police Department may have closed its case, it’s not uncommon to reopen an investigation if either department were to get a lead. “It’s always ongoing b...
2.2. MU-MIMO Eigenmode Transmittion When the number of UE antenna elements is larger than that of the transmission stream, i.e., Nr > Ns, BS performs space division multiplexing (SDM) or beamforming in beam space [28]. The i-th UE obtains channel matrix Hi and computes the SVD. Hi ...