Masoud Arash

3 Questions 5 Answers 0 Followers

Questions related from Masoud Arash

Why CRLB of a linear array is inversely proportional to sin(AoA)^2?

A well-known fact is that Cramer Rao Lower Bound (CRLB) in 2D Angle of Arrival estimation is inversely related to the (sin(AoA))^2 (or (cos(AoA))^2, depending on the reference of AoA). See [1,2]...

21 October 2020 4,819 4 View

What is the channel modelling differences between Large Intelligent Surfaces (LIS) and Reconfigurable Intelligent Surfaces (RIS)?

RISs are large surfaces without separate antennas and are considered as a whole, while LISs are composed of small antennas with limited capabilities. (Is this understanding right?) What is the...

26 August 2020 7,471 7 View

Why usually only one fading coefficient is considered for Angle of Arrival calculation in Massive MIMO system?

It is very common in research works that people consider only one channel coefficient for all of antennas when they analyse the characteristics of AoA estimation in MIMO systems. On the other...

20 December 2019 1,851 4 View