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Hello, I am using opnet modeler 16.0 and trying to simulate csma operation. I built the csma model but facing some error. I need help to fix this. The message shows like this:
Multiple true transitions from state (idle)
T (7110.17), EV (16854), MOD (top.Office Network.node_10.tx_proc), PROC...
I am working on a project where I am supposed to design a computer program to simulate a simple synchronous DS-CDMA system with BPSK modulation for single and multiple user. In the channel, there are both rayleigh noise and gaussian noise. When I tried in simulink without pulse shaping filter...
I am trying to build a simple transmitter and receiver in simulink. Output of random number generator multiplied with PN generator. Then, after bpsk modulation and raised cosine pulse shaping it is fed to awgn channel. I need to know the parameters for this design and ways to reduce BER.
using another phone and hyperterminal it received a sms of 1111000 like this -
08 91 881006006000F1 04 0D 91 881076837520F5 00 00 01703291240242 08
B1 58 2C 06 83 C1 60
now the service center and mobile number is 14 digit including the F. but in the project it was like 12 digit including...
Hello, I have been trying to do the sms based remote control project from https://www.serasidis.gr/circuits/smscontrol/smscontroller.htm
As soon as the ericsson t10 phone recieves the sms it gets deleted. but I can not see any voltage change in the output pin. I do not know how 12vdc 5 pin...
pin 6 and 7 of nokia 6230 are usb D+ and usb D-.
you cannot connect this phone to micocontroller using serial communication. you develop usb communication and u need to write a driver for this. and this pic will not work. you need pic 24 or 32 series.
Hello, I am trying to interface sony ericsson k770i phone with attiny2313 microcontroller using usb to serial adapter. i am using a both sided female usb port where one side it takes male usb port of sony ericsson phone and another side takes male usb port of usb to serial adapter. now using...
Hello all,
i m a newbie working in a project. can anyone help me with usb interfacing between gsm module/modem with pic18f/pic24f/pic32f. i have been trying with pic18f4550 but it seems it is not supported USB OTG function. may be i need maxim3421 for the host controller. can anyone provide any...
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