Questions tagged [bit-rate]
Questions relating to the rate at which bits are transmitted over a channel (wired or wireless). Usually specified in bits/s or a multiple of that unit. Related but not the same as baud rate or symbol rate.
79 questions
0 votes
1 answer
67 views
Different voltages at different point in a Transmission line
Assuming in a transmission line a bit sequence is transmitted 1010,if the transmission line has a time delay of 1ns and the time period for a bit is 0.2 ns there will be 5 bits transmitted ...
- 1
2 votes
2 answers
343 views
How Many Levels / Trying To Figure out Bit Rate
I'm trying to figure out the following constellation, specifically the amplitude. I am trying to figure out the different levels (M) This particular QAM has 32 states (I get this), but I want to make ...
- 123
-1 votes
1 answer
196 views
Data rate for an ASK modulation [closed]
A telephone line with a bandwidth of 3 kHz and an SNR of 6 dB. I am asked to calculate the maximum bitrate on this line and the error probability, knowing that ASK modulation is used. For ASK ...
1 vote
2 answers
2k views
Auto-detecting CAN-Bus bitrate
My team and me are developing our own CAN-Bus adapter. For now, based on the ESP32's integrated CAN-controller, later using an MCP2518fd. I wonder about the best way to auto-detect the configured ...
- 175
18 votes
6 answers
5k views
Why is the bitrate of infrared smaller than the bitrate of WiFi?
Infrared has a frequency of 300 GHz – 430 THz, while WiFi has a frequency of 2.4 GHz or 5 GHz. As the frequency of infrared is greater than the frequency of WiFi, the transfer rate (bitrate) of IR ...
-3 votes
5 answers
192 views
Enough about bits, bytes in book language. I want to know what a bit is in general. Electricity? [closed]
It has been 4 years I am familiar with bits, bytes and true false, on off situation. What are bits in general? Are they electricity? When we say bits per second, are we talking about the speed of ...
- 189
4 votes
5 answers
2k views
Why is the frequency response of an LED important?
I'm working on visible light communication where I fabricate my own organic LEDs. One of the ways to characterize them is "small signal analysis." I understand we are applying this analysis ...
- 145
0 votes
1 answer
101 views
Digital signals - multiplication of Bits ( number of bits ) - How to do it? ( binary bits ) [closed]
Let us say I have a number with p bits: x = [___...___] >> p Bits. and I want to multiply it by another p bits. will I receive: ...
- 335
0 votes
1 answer
103 views
Maximum bit rate over a communication channel
Shannon formula C= B log (1+S/N) Is this formula applied for baseband transmission only? or for both baseband and passband modulation? Can we apply it without any changes to any modulated signal? What ...
- 125
-2 votes
1 answer
186 views
How Ethernet uses full bandwidth of the link if one host is sending more than one frame for different hosts? [closed]
I followed from this question. We know that modern Ethernet is full-duplex. At the same time, we can send or receive the signal. Suppose I consider one LAN where multiple hosts are connected by ...
- 113
0 votes
1 answer
94 views
Baseband uses full bandwidth of the entire link or portion of the bandwidth?
We know that modern Ethernet is full-duplex. At the same time we can send Or receive the signal. Suppose I consider one Lan where multiple hosts are connected by different ports of switch. Let's take ...
- 113
-2 votes
2 answers
603 views
Why baseband uses full bandwidth of the signal where broadband uses portion of the bandwidth? [closed]
We know that broadband signal is full-duplex, for example television cable line where all TV channel is used portion of bandwidth not full bandwidth. And modern baseband is also full duplex but all ...
- 113
1 vote
1 answer
3k views
Real-world CQI-to-MCS and SNR-to-CQI tables?
How can I get real-world CQI-to-MCS and SNR-to-CQI tables? I am particularly looking for 5G-NR or LTE-A related tables. Can someone share any references? Edit: I had found one table for CQI-MCS ...
- 135
0 votes
1 answer
831 views
Quick question regarding CANbus wiring
New to CANbus and just wondering about something. I want two nodes connected with CANbus. They have different MCU, transceivers and so on. Question is, can I just connect these on the same wire? (see ...
- 23
1 vote
2 answers
327 views
Bandwidth of a pulse code modulation system
Original test question: 24 telephone channels, each bandlimited to 3.4kHz are to be time division multiplexed by using pulse code modulation. Calculate the bandwidth of pulse code modulation system ...
