Comments on: Power Delay Profile https://www.gaussianwaves.com/2014/07/power-delay-profile/ Signal Processing for Communication Systems Wed, 26 Feb 2025 10:27:06 +0000 hourly 1 https://wordpress.org/?v=6.7.2 By: Priti Pachpande https://www.gaussianwaves.com/2014/07/power-delay-profile/#comment-31436 Mon, 24 Jul 2017 20:07:00 +0000 http://www.gaussianwaves.com/?p=6682#comment-31436 Hello Sir,
I am working on a UltraWideBand project I need to measure path loss , channel delay spread from the scans I get which are saved in a .csv file. Can you help me how should I calulate this in matlab?

]]> By: Ranjan https://www.gaussianwaves.com/2014/07/power-delay-profile/#comment-27764 Sat, 09 May 2015 06:06:00 +0000 http://www.gaussianwaves.com/?p=6682#comment-27764 In reply to Mathuranathan.

Dear Sir,

Thank you so much for your valuable suggestions for me. I appreciate your pain to share some really good resources to help me understand the channel modeling in a lucid manner.

I would follow and learning as well.

Thank you once again for your kind help.

]]> By: Mathuranathan https://www.gaussianwaves.com/2014/07/power-delay-profile/#comment-27763 Fri, 08 May 2015 01:54:00 +0000 http://www.gaussianwaves.com/?p=6682#comment-27763 In reply to Ranjan.

Channel models for multipath is a separate topic that needs a full semester study for understanding.

One of the simplest way to model channel models is to view the effects statistically. In this regard, some common distributions are available to model the statistical time varying nature of the envelope of individual multipath components.

Rayleigh Distribution – Theory – https://www.gaussianwaves.com/2010/02/fading-channels-rayleigh-fading-2/

BPSK over Rayleigh Fading model – https://www.gaussianwaves.com/2011/05/ebn0-vs-ber-for-bpsk-over-rayleigh-channel-and-awgn-channel-2/

Clarke’s model for Rayleigh Distribution – https://www.gaussianwaves.com/2011/05/simulation-of-rayleigh-fading-clarkes-model-sum-of-sinusoids-method-2/

Young’s model for Rayleigh Distribution – https://www.gaussianwaves.com/2010/02/rayleigh-fading-simulation-youngs-model-2/

BPSK over Rician Fading model (LOS path is dominant) – https://www.gaussianwaves.com/2012/07/ebn0-vs-ber-for-bpsk-over-rician-fading-channel/

The above mentioned models are very simple and does not include/consider Doppler effect, type of fading environment, Angle/direction of Arrival, etc..,

A good overview of mutipath channel models are given here.
https://www.utdallas.edu/~saquib/EE4365/BBIC-4-ChannelModel.pdf

For calculating different delay spread parameters, examples are available here
https://www.utdallas.edu/~saquib/EE4365/examples-fading.pdf

]]> By: Ranjan https://www.gaussianwaves.com/2014/07/power-delay-profile/#comment-27735 Tue, 05 May 2015 09:55:00 +0000 http://www.gaussianwaves.com/?p=6682#comment-27735 Hello Sir,

Your post is really very useful and informative for the beginners in communication area.
I am also one of them. Sir, i have few questions as my background is computer science so i am facing bit complex to start.

I have IQ complex samples vector, from that i extracted the received power per samples. Now i have the RSS values (converted into dbm). Please guide me that how can i start channel model for multi path effects. Also, how can i use those RSS value to calculate the different delay spread of the channel. Please guide me cause i am new for both MATLAB and Wireless channel modeling.

Regards

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