hi , i read some paper about wireless relay communications . and outage
probabilty is the one of evaluation parameters . from the expression , thai is Pr(I
Digital communication :: 23.12.2008 04:52 :: skyspeed :: Replies: 9 :: Views: 8248
hello, I didn't understand why if the mutual information between source and destination is less than the rate an outage occur?
Digital Signal Processing :: 07.01.2010 08:14 :: lativasson :: Replies: 2 :: Views: 700
Hi every one!!!
I want to know that what is the idea to simulate the outage probability in the Matlab?
for example, when we want to simulate BER in Matlab we send bits over a channel and then calculate the number of errors and the BER probability. Now, what is the method for outage probability?
Digital communication :: 29.07.2010 12:06 :: ashkan_d29 :: Replies: 5 :: Views: 1618
can any body provide me matlab code to plot the capacity CCDf's .
for example SNR of 21dB and outage capacity of 10%..
x axis = capacity ,bits /sec/hz
y axis = probability(capacity>abscissa)
with increasing p(probability )
RF, Microwave, Antennas and Optics :: 11.07.2011 12:48 :: nitishgautam :: Replies: 0 :: Views: 313
Maximum diversity of the system is the maximum vanishing exponent of SNR in the outage probability.
Any scheme that that achieves the same exponent order is said to achieve full diversity.
Digital communication :: 08.03.2007 08:11 :: darock :: Replies: 9 :: Views: 1157
The Iterative Solutions Coded Modulation Library (ISCML) is an open source toolbox for simulating capacity approaching codes in matlab.
It has been developed by Matthew Valenti.
It is licensed as free software under the lesser GPL license.
The toolbox contains support for the followi
Software Links :: 18.02.2007 15:15 :: AARTHIREDDY :: Replies: 2 :: Views: 5256
Hi,sir you are a person who frequently upload the various codes (MATLAB) for us junior students. So I thought I might request you for a personal favour. Sir, I am a student of UG at NUST and wanted some help for my project. Actually as part of my thesis project i am supposed to do following tasks for any wireless system (ofdma preferably)
Digital communication :: 07.05.2008 19:18 :: umardar27 :: Replies: 25 :: Views: 19310
Arif Khan and others
Can you please explain to me that in a graph of outage probability, where x-axix is SNR in dB scale and on y asix there is semilogy y of outage probability,, How to find the diversity order by using slope formula ??
Digital communication :: 29.12.2009 23:37 :: channel_coding84 :: Replies: 7 :: Views: 3469
WIRELESS COMMUNICATIONS - Andrea Overview ofWireless Communications 1
1.1 History of Wireless Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Wireless Vision . . . . . . . . . . . . . . . . . . . . .
Digital communication :: 09.07.2008 23:19 :: sunart.org :: Replies: 11 :: Views: 7211
it depends on the channel gain i.e., H matrix.
Let me give you a brief idea:
Definitions of Ergodic & Non-Ergodic channel:
The channel gain process is ergodic, i.e., the time average is equal to the ensemble average.
In other words, the randomness of the channel gain can be averaged out (removed) over time.
Digital communication :: 27.03.2009 12:52 :: rramya :: Replies: 2 :: Views: 976
currently, i m considering BER, but i intend to expand the comparison to outage probability. as for now i have developed a basic frame work and just want to know if it is correct.
Digital communication :: 10.08.2009 01:16 :: Blue_Angel :: Replies: 31 :: Views: 4294
cycle use is the term used when the battery is delivering the voltage to the load...... and standby is when the system is in idle state........
---------- Post added at 22:02 ---------- Previous post was at 22:00 ----------
"Cycle Use" - direct power source:
Cycle Use It can provide the power supply to power
Electronic Elementary Questions :: 01.06.2011 18:32 :: ckshivaram :: Replies: 28 :: Views: 1737
If I were to use these two together with a 12V Car Battery out of the vehicle, do you think this would work ?
The Power Inverter connected to the battery & Battery Charger would be plugged into the power inverter & the battery charger connected to the car battery...
Basically a loop..
I would then use just a couple CFL'S in my house in the event
Hobby Circuits and Small Projects Problems :: 14.11.2011 06:23 :: campus189 :: Replies: 12 :: Views: 1263
So the charging circuit is just a voltage regulator?
Isn't there a current limiter that controls the charge current?
Yes it is just a regulator. Here is the input circuit attached.
The user says he needs only an ampere or so to keep the Router and Cable modem ON.
I have a small UPS (APC Bac
Electronic Elementary Questions :: 15.01.2012 09:49 :: Raza :: Replies: 38 :: Views: 1098
UPS during power outage fast switch and supply power from internal inverter. Power consument continue to work, like nothing happen, if main power is back UPS switch supplying power to mains and charge internal battery. Switching from mains to internal inverter is in time in 4ms range. UPS is device which give power to power consument from mains or
Power Electronics :: 22.03.2012 15:07 :: tpetar :: Replies: 17 :: Views: 885
How to make (build) ATS (Automatic Transfer Switch) ?
I want to switch off my generator's output power & switch on the electricity (provided by the Govt) when the electricity shortage (outage) is over . Can i make that circuit ?
Also, if i want to completely shut off the generator then can it be done too ?
Electronic Elementary Questions :: 10.04.2012 06:47 :: phatcreators :: Replies: 23 :: Views: 2982
Hello, im currently designing a 12V battery charging circuit.
The simple summary: This circuit will charge 2 12V battery & when there is power outage, the 2 batteries will supply to the equipment.
The charging circuit is up and running.
But now im given a new task - when the battery is 90-95% fully charged, the battery will be cut off from th
Electronic Elementary Questions :: 19.05.2012 01:22 :: faridfauzi :: Replies: 3 :: Views: 456
It is a big wall clock based on Atmega8. Its dimensions are: 180x70x18mm.
Presented clock displays not only hours and minutes, but also blinks the colon and has automatic control of the brightness depending on the lighting (th
Show DIY :: 31.05.2012 00:57 :: Vermes :: Replies: 0 :: Views: 540
correction table is added in case o/p is less and deducted in case the o/p is more fore each pulse
Is this method more precise than seperate complete tables? I guess there is more error introduced in values of sine table generated due to small values of error table causing distortion.
How about pi correction? A
Microcontrollers :: 10.07.2012 16:02 :: ALERTLINKS :: Replies: 18 :: Views: 666
Are NiCd batteries superior to NiMH batteries for emergency lighting unit use?..........
the following seems to suggest that it you agree?
As discussed, i was looking into NiMH vs NiCd cells for our Emergency Lighting Unit......
Unfortunatley, NiMH is not looking suitable for Emergency use, because Emergency use requires the batter
Electronic Elementary Questions :: 21.04.2013 23:48 :: treez :: Replies: 4 :: Views: 180