Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hello. I need a little help. I have to do a packet size optimization for a mac protocol. It is a TDMA-based mac protocol. I began with PER which is equals to 1-(1-BER)^l where l is the packet length. But I don’t know what the next step is. Is there a general way how I can do this? I’ve checked...
Hello
I have a question:
I have a following code in vhdl:
process
begin
A<=B;
wait 10ns;
A<=C;
wait 10ns;
end
So the sensitivity list is empty and I know the above code will work periodically. In the first 10ns B input will be on A output and the second 10ns C input will be on the A output. But...
bsn channel model
Hello
I need a little help.
I use the Rayleigh model as the photo shows in case of body sensor network.
I have many different nodes on the body with many different channels among the nodes and my question is the following:
Is it OK to use different 'a' before the produktum...
I have a homework and I need help in it because I am not sure how I should begin.
I have to write a code into the Spartan 3 FPGA in which I have to process a 32x32 8 bit picture as a CNN does. It means I have to get a photo, A, B template and Z bias via USB and I have to resolve the following...
The energy consumption is E = P*T, P are [V] and [A] and T is [s].
And if I have a battery I know it uses 1800mAh -> it [A] and [s]..
where is the [V]? I know it's a constans
T
Hello
There is a wireless sensor network. And I would like to do a power consumption model. One node contain:
{ {small sensor} ---> {ADC} ---> {microcontroller} ---> {radio} }
Of course it can be in sleep mode. And the energy power is given, for example 6000As.
What should I do?
I think a...
hello
I’m simulating body sensor network’s MAC protocols. I know the channel rate it’s 40kbps and I also know the long of packet it’s 150 bit. I can calculate the time of transmission one packet, it was about 0.00375s. I know the distance between the transceiver and the receiver; d.
Which...
The channel ISI free if: H(z)=1 on every frequency.. Interference can be because of multipath because each symbol can be faster than the before symbol... Am I right?
crosstalk can be for example in case of UTP cable. it means you can hear in each cable what you sent on another cable.. therefore...
There are many functions in the Matlab and if we used the same name in my functions it'd cause the above problem... I also was on the above way and get this message.. I therefore use Hungarian words to name my functions.. :-))) T
signal fading
there is a good description on the internet.. the power of transmit signal is bigger than the power of received signal because of environment. It means this signal can lose of its energy because of clouds, dust and so on.. the water steal much energy.. Am I right?
there is many...
Hello, I need a little comment for this picture. I don’t know exactly what this is. I am studying MAC protocols now for body area networks.
Why are there Inactive Period? And do it mean a period where no one use the channel? Why?
I think the beacons means the synchronisation.. Do these beacons...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
