Understanding the Wireless Channel

NeTS: Small: Theory and Applications of Sparse Approximations of the Channel State Information in Wi-Fi Networks

Representative Results


CSIApx: A Fast CSI Compression Algorithm

We propose CSIApx, a very fast and lightweight method to compress the CSI of Wi-Fi networks. CSIApx is based on our finding that any sinusoid can be approximated very well by a set of base sinusoids on constant frequencies.


ParEst: A Novel CSI Estimation Algorithm

ParEst estimates the CSI from multiple transmitting antennas jointly, and can immediately replace the existing CSI estimation methods in Wi-Fi and LTE/5G NR.