Because the uplink and downlink channels lack reciprocity, the user needs to feed back the downlink channel to the base station for processing such as precoding in frequency division duplexing system. The feedback overhead is huge cause the feedback information is proportional to the number of ...
In order to use the LoRa signal for sensing, we need to remove the high frequency base-band chirp signal and the phase offsets, so that only the movement information of the target retains. Thus, the signal division operation is performed on the LoRa gateway equipped with two antennas. This...
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, ...
Even for fixed equipment, such high variability will bring about a large positioning error. In addition, in an orthogonal frequency division multiplexing (OFDM) system, the RSS value does not use a large number of subcarriers to obtain richer multipath information. Recently, a popular method has...
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...
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...
Division 2, hazardous location, this equipment must be mounted in a suitable enclosure with proper wiring method, for all power, input and output wiring, that complies with the governing electrical codes and in accordance with the authority having jurisdiction over Class I, Division ...
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 ...