Andrei Zakharov

5 Questions 9 Answers 0 Followers

Questions related from Andrei Zakharov

What instruments for neural network vector quantization exists for testing new quantization methods?

Vector quantization is a large area that use many algorithms and theoretical results (from Fejes Toth's hexagonal grid to Peter Gruber's quantization on manifolds, including non-uniform and...

01 June 2021 1,969 3 View

How Channel State Information (CSI) could be obtained from matrix generated in Spatial Channel Modeling (SCM)?

Geometry Based Stochastic Channel Modelling or Spatial Channel Modeling (SCM) methods such as: - 3GPP-SCM, SCM-E - Winner (I and II) - QuaDRiGa produce channel coefficients as a matrix H (may on...

05 November 2020 9,640 2 View

What is CSI feedback N-bit overhead?

The exact phrase: The N-bit overhead of CSI feedback in FDD Mu-Massive MIMO I know that FDD is used for predetermined grid of beams with user equipments reporting their preferred beam. So, user...

09 September 2020 2,640 1 View

How to find or generate a dataset of beamforming CSI (Channel State Information) matrix to research its compression?

I would like to research compression of CSI matrix of channel sounding with beamforming (802.11ac, 5G), but I have no any dataset. CSI matrix, I suppose, should be extra-large but sparse, so the...

22 July 2020 550 0 View

Fraud Detection System based on Attributes of Requests (Geo, IP, OS/Browser, User/Request info)?

Hello and good day/night to all colleagues! Suppose I have data: attributes of requests (e.g. from history of online bank system) - client IP (with IP info - continent, country, city, latitude,...

26 November 2019 2,747 1 View