Imtiyaz Khan

10 Questions 29 Answers 0 Followers

Questions related from Imtiyaz Khan

How to implement Oudated Channel State Information (CSI) in Matlab?

In most of the papers, the formula for outdated CSI is given as h=\rho h* + \sqrt{1-\rho^2} v where h* is the outdated version of h and v is a random variable with mean zero and variance...

14 September 2017 687 8 View

How to check the stability of the estimation performance?

Trying to find out the performance of DLMS based detection. Before that I need check out the stability of estimation performance. But I don't know the way how to check the stability of estimation...

07 April 2016 6,273 2 View

Why ROC cannot cross each Other?

I want to ask that for the same system for different parameters why ROC cannot cross each other?

25 February 2016 4,624 3 View

Is it possible to get the probability of detection (PD) unity when the probability of false alarm (PF) is zero?

In ROC, we compare PD vs PF. So I want to know is it possible to get value of PD=1 when PF=0.

10 December 2014 9,880 9 View

How do I choose cyclic frequency in cyclostationary feature detection?

In cyclostationary signal detection for particular type of signal modulation how to determine the value of cyclic frequency alpha so that it would give required detection.

02 December 2014 7,713 8 View

Can anyone help with implementing Cyclostationary Detector in spectrum sensing?

I have Implemented this detector in AWGN channel in Matlab but I am getting vague results. As its performance doesn't vary with change in SNR. Its a very strange result for me. I don't know what...

18 November 2014 8,826 7 View

Is it possible that adding noise to a signal can increase detection probability?

I am simulating a feature detector in noisy environment which consist of AWGN Noise and Impulsive Noise. But I am getting a strange result as Signal with Impulsive+AWGN noise has better detection...

12 November 2014 5,510 16 View

Does analytic expression for probability of detection for cyclostationary detection exist?

As I have found out, their is no way to find the actual pdf and its parameters (like mean and variance) when primary signal is exist in cyclostationary spectrum sensing. So how do I define...

06 October 2014 8,515 4 View

What are the optimization problems that exist in Spectrum Sensing Technique in Cognitive radio networks?

I am a PhD student. The object of my thesis is "Spectrum Sensing in Cognitive Radio". It consists of resolving optimization problems that exist in Spectrum Sensing Technique in CR. More...

29 April 2014 2,275 4 View

How can secondary users communicate in Co-operative Spectrum Sensing?

How can secondary users communicate with each other or the fusion center when they have no spectrum/channel/bandwidth to communicate or to send their sensing results to centre/users?

19 November 2013 6,162 2 View