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Wireless Communication Interview Questions | Page 4


 

Data communication

Q. Criteria for cable selection for data transmission

A. The bandwidth of various cables, such as coaxial, twisted, and so on, varies. As a result, we select cables based on their bandwidth.

Q. 2.4g WIFI doesn't work on dual broadband router whereas 5g network works fine

A. 5 GHz WiFi frequency provides more bandwidth and channels to users.

Wireless protocol used to communicate for a short distance

What will be the baud rate of a communication channel that can transfer 20 symbols in 5 seconds?

Wireless channels are more prone to bit error than wired channels

What are the essential elements of linear array detector signal processing, and what are their functions?

Is QAM the best choice for efficient bandwidth?

A. Bandwidth of QAM = 1*R baud, where R = number of symbols per second


Frequency bands

What is shf frequency range?

A. 3-30 GHz

What is the UWB frequency range

A. 3 - 10 GHz

read more about frequency bands ...


5G

How 5g achieve higher reliability than 4g

Is MI 10 compatible with both 4g and 5g?

Does this Sony 43x8000h model support which network, 4g or 5g?

The best internet-antenna spacing for BSA(broadside array is


Internet

Some point against the excessive use of the Internet

Advantages and disadvantages of the Internet on quick and verified information


Antenna

I have a 2 antenna modem. How would I come to know that both antennas are working

0 db high band antenna length

What are the electronic components required to make single-wave antennae?

antennas for long-range communication


Computer Network

The data plane in the network model is responsible for

Write the necessary needs of computer network

lab manual for computer servicing and networking lab Polytechnic College

Why do protocols in the computer system need to communicate with interconnected networks?

A. See answer


Internet of things

Without any human intervention, the large number of devices connected to the IOT to exchange information is called.

M2m IOT architecture comprises of

IoT project ideas that can create a better society


Technology

How the technology has improved to send messages?


Bluetooth

Do wireless transmitter-receivers also have Bluetooth options?


Backhaul

How many companies have developed multi-beam backhaul or point-to-multipoint wireless products in E band frequency?


Mobile Phone

How are landlines and mobile devices connected to local telephone exchange using wired and wireless communication?


Telemetry

Future scope of wireless telemetry

Wired and wireless telemetry system


MIMO

What is the future scope of spectral efficiency improvement in UL massive MIMO using space-time block. Coding?

What is the use of management protection cable in the MIMO link?


3G

Can a 3g device be connected with 5g Internet?



What are the baud rate, bit rate, sampling rate, and their differences?

What are Nyquist criteria?

 What is Aliasing


What are the differences between FIR and IIR filters

A. See answer


What is a raised cosine filter?




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  Interests: Signal Processing, Telecommunication, 5G Technology, Present & Future Wireless Technologies, Digital Signal Processing, Computer Networks, Millimeter Wave Band Channel, Web Development
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MATLAB code for MSK

 Copy the MATLAB Code from here % The code is developed by SalimWireless.com clc; clear; close all; % Define a bit sequence bitSeq = [0, 1, 0, 0, 1, 1, 1, 0, 0, 1]; % Perform MSK modulation [modSignal, timeVec] = modulateMSK(bitSeq, 10, 10, 10000); % Plot the modulated signal subplot(2,1,1); samples = 1:numel(bitSeq); stem(samples, bitSeq); title('Original message signal'); xlabel('Time (s)'); ylabel('Amplitude'); % Plot the modulated signal subplot(2,1,2); samples = 1:10000; plot(samples / 10000, modSignal(1:10000)); title('MSK modulated signal'); xlabel('Time (s)'); ylabel('Amplitude'); % Perform MSK demodulation demodBits = demodMSK(modSignal, 10, 10, 10000); % Function to perform MSK modulation function [signal, timeVec] = modulateMSK(bits, carrierFreq, baudRate, sampleFreq) % Converts a binary bit sequence into an MSK-modulated signal % Inputs: % bits - Binary input sequence % carrierFreq - Carri...
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BER vs SNR for M-ary QAM, M-ary PSK, QPSK, BPSK, ...

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Constellation Diagrams of ASK, PSK, and FSK

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Fundamentals of Channel Estimation

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Comparisons among ASK, PSK, and FSK | And the definitions of each

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Difference between AWGN and Rayleigh Fading

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Constellation Diagram of FSK in Detail

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Gaussian minimum shift keying (GMSK)

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