Comments on: MIMO with MMSE SIC and optimal ordering

By: christine

christine — Thu, 04 Mar 2010 01:39:13 +0000

thanks for your note,but i would like to know what u mean by 2 user MIMO case ,is this a multple user MIMO system?
thanks

By: Krishna Sankar

Krishna Sankar — Fri, 13 Nov 2009 00:23:39 +0000

@aydar: Sorry, I have not published posts these days. I am working on it.

By: aydar

aydar — Mon, 09 Nov 2009 14:45:58 +0000

Yes, thats what I mean.
By the way, although I am subscribed I don’t receive any notifications from your website..hmmm

By: Krishna Sankar

Krishna Sankar — Sun, 08 Nov 2009 02:15:20 +0000

@aydar: “your SIC with ‘optimal sorting’ would need to become a bit more complex in case you use channel coding”
yes, thats interesting. you mean there will be different coding on each spatial stream?

By: aydar

aydar — Mon, 26 Oct 2009 15:01:26 +0000

Just a note: the same concept could be applied for non-linear receivers as well, like ML. where instead of substracting an inteference you can just reduce the search scope for the second user based on the information you have from the second MIMO user (if it were 2 user MIMO case). What i mean is that in this case you dont need to go through all possible symbol combination because you already know what first user has sent.
another thing, your SIC with ‘optimal sorting’ would need to become a bit more complex in case you use channel coding – you can have a robust coding and have low SNR or high coding rate and high SNR..

By: Krishna Sankar

Krishna Sankar — Mon, 12 Oct 2009 00:17:59 +0000

@Alana: Please refer Chapter 10 in Digital Communication: Third Edition, by John R. Barry, Edward A. Lee, David G. Messerschmitt Good luck.

By: Alana

Alana — Thu, 08 Oct 2009 03:57:52 +0000

I can’t seem to solve W from E((Wy-x)(Wy-x)^H)) …can somebody help with this? *cry*