18 Questions 25 Answers 0 Followers
Questions related from Muhammad Karam Shehzad
I have read in a paper that a variable 'x' is the rotation angle of the user's antenna array with respect to moving direction. I am wondering how can we calculate this variable x? Following...
30 May 2022 4,953 4 View
I have two complex vectors, let's say a and b. How to compute cosine similarity between a and b using MATLAB?
26 January 2022 2,230 4 View
Let us say that we have a estimated channel at the BS, denoted by H_e, and actual channel, denoted by H_a. How can we calculate spectral efficiency of a SU-mMIMO system using this information?...
26 January 2022 2,939 4 View
I've read many posts and papers, where both the terms are used interchangeably. For instance, I read this sentence somewhere: "Codebook-based precoding is a promising new technique of...
25 August 2021 4,483 3 View
I have some binary values, lets say 0.5 and -0.5 (remember not 0 and 1), I want to use RNN to predict these values. Is it possible using RNN?
14 June 2021 1,191 8 View
In the literature, I have seen path-loss models, e.g., air-to-ground (ATG). Such models obtain received power by using: Pr=Pt-PL. However, none of these models provide the method to obtain 'H'....
07 April 2021 5,664 4 View
I have a channel matrix, H, which contains the complex entries. I want to obtain the quantization of this matrix. For instance, H=[1+2i,2-3i;5+3i,9-8i]; Q(H)? Where Q is a quantization function. I...
12 August 2020 4,997 4 View
I am looking for a MATLAB code to implement channel prediction or channel state information (CSI) using a Kalman filter-based approach. Specifically, for a MIMO environment.
30 May 2020 7,943 3 View
Can someone give the mathematical institution behind this question? I have read the above question in a paper [1], but the answer to the question is unclear to me. [1] Maximizing the Sum Rate in...
18 May 2020 8,897 0 View
I would like to obtain the closed-form solution of GA for any kind of optimization problem. In short, I would love to compare the analytical and simulation-based results. Is it possible?
17 December 2019 5,794 2 View
By calculating the distance between two antennas and then taking the 'fft' of the received signal, how the speed of the signal can be calculated?
29 November 2019 7,158 4 View
The UAVs used in the military services can stay aloft for almost 45 hours based on the payload. What about the UAV used in cellular communications? For instance, the UAVs used in emergency...
09 October 2019 9,806 3 View
I have implemented the k-means to find the centroids of a cluster, now I want to find the "kpi" of the algorithm.
28 September 2019 9,538 6 View
I have just started reading about MIMO. That's why I have a number of questions in my head. Why we use antennas having configuration 2*2, 4*4. Why not 3*3? In addition, what kind of correcting...
27 September 2019 4,264 5 View
I have all the parameters to distribute SBSs but I don't know how Matern process will be implemented in MATLAB. There is a tool mentioned in the paper "MATLAB built-in integer linear program...
03 April 2018 7,058 9 View
We know that, Pd=1-Pmd How Pfa is related to Pd? Is it true that Pd=1-pfa?
02 January 2018 5,436 4 View
I am on Linux platform with MySQL NDB 5.7. I am trying to monitor all traffic related to MySQL clustering – between data nodes, management node and sql nodes. To that end, I used netstat to list...
04 November 2016 4,559 7 View
One of the co-authors of my research work passed away prior to the submission of the research paper. I would like to acknowledge his contribution to the research. What is the best way of writing...
01 January 1970 3,691 10 View
