Questions tagged [error-correction]
Error-correction is a technique that enable reliable delivery of digital data over unreliable communication channels.
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Error correction technique for 4 kB of data with 10-15% bit errors in an embedded microcontroller?
I'm working with an embedded project that uses a 4 kB buffer. Every once in a while something happens which introduces 10-15% bit errors, scattered throughout the buffer. Can someone please recommend ...
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Can you simulate a GZK-energy cosmic ray zap to hardware you're simulating?
There have been over a hundred particles of energy 5e19 eV matching the Greisen–Zatsepin–Kuzmin limit detected on Earth since 1991. There has even been a particle supposedly with energy at least 2e20.
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problem with switching from arduino mega to ESP32
I bought an ESP32 to try instead of an Arduino Mega. But I ran into a problem with my program. The program has the function of controlling the stepper motor through the LCD display and it runs without ...
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Why does sionna use the code rate to convert from noise on a bit to noise on a symbol?
TL;DR:
Why does sionna.utils.ebnodb2no take the code rate as input?
Long version:
sionna is a library for simulating communication channels, including noise ...
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PS/2 Mouse Movement Frame - How do I detect, or correct errors on reception from device?
This question is from a project of mine I have been working on for about 3 months now, and I reached a point where I was going to go the route of using an interrupt based handler for my packet ...
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SECDED in the presence of more than two errors
Is there a way to calculate the number of errors that will be caught (or missed) by SECDED when there are more than two errors? I'm thinking of an issue such as a badly-timed data strobe, where the ...
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CANOpen SDO block transfer retry if timeouted?
I'm using the CanFestival CANOpen library (https://canfestival.org/) for a PC app that talks to a device via CAN bus. The device is CIA-301 compliant. I'm using SDO block transfers for device firmware ...
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What kind of FEC is suitable for me?
I'm sending over the air data block which is 144 bytes.
I can put additional 18 bytes of data for error correction.
The field for FEC looks very small and I can't find what I can use.
I have not ...
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Is a bit error rate close to 1 just as desirable as one that is close to 0?
Let me explain the premise. If you have a communication system, and you know with a very good confidence margin what the bit error rate is, would you be able to exploit the properties of high bit ...
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How does BICM work?
Can someone explain bit-interleaved coded modulation (BICM) in plain language, focusing on the practical mechanisms and properties rather than the deep analytical details? I found a few papers and ...
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Checking correctness of an instruction and addressing mode
I'm given set of instructions and set of addressing modes that can used. In the first loaded byte is stored operation code of an instruction and in second byte is the addressing mode that instruction ...
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Recover correct value from unstable memory through read operation
We are given a memory with 32-bit width for each word. it has the length (N - number of rows) which is not relevant for the question. we know that the memory has a problem where at any row, one bit ...
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What is the practical probability of a bit getting flipped during transmission?
We know that Coding Theory depends on the fact that the probability p of a bit flip must be less than 0.5. From Fundamentals of ...
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What is the probability of a bit error occurring in modern computers?
What is the probability of a bit error occuring when reading/writing from/to the latest memory technologies (ssd, hdd, ram) in modern computers? If the same terminology is used in this context as in ...
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Can unwritten (but presumably otherwise usable/functional) blocks on an SD ever fail to be readable?
Does an SD come from "the factory" with all of its ECC (or spare area) set correctly?
Sometimes when I blindly dd (copy) an entire SD card (that is only partially ...
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