My Cart
Your Cart 0

    Your cart is empty.

  • Total (Amount) ₹0.00
Previous year question hub

Communications - Electronics & Communication Engineering Previous Year Questions

Practice Communications - Electronics & Communication Engineering previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

21Papers
14Years
103Questions
1Topics

Communications question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Communications. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Medium 65 63.1%
Easy 34 33%
Hard 4 3.9%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Numerical Answer Type (NAT) 48 46.6%
MCQ 47 45.6%
MSQ 5 4.9%
Fill in the blanks 3 2.9%

Subject weightage

Top subjects by unique question coverage.

Electronics & Communication Engineering
103 Qs

Most asked topics

Top topics across the included previous year papers.

Communications
103 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Digital Communications
41 Qs
Analog Communications
30 Qs
Information Theory
28 Qs
Random Processes
4 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Electronics and Communication Engineering (EC) 2026
7 Qs
Electronics & Communication Engineering (EC) 2025
7 Qs
Electronics & Communication Engineering (EC) 2024
5 Qs
Electronics & Communication Engineering (EC) 2023
3 Qs
Electronics & Communication Engineering (EC) 2022
6 Qs
Electronics & Communication Engineering (EC) 2021
8 Qs
Electronics & Communication Engineering (EC) 2020
5 Qs
Electronics & Communication Engineering (EC) 2019
5 Qs
Electronics & Communication Engineering (EC) 2018
4 Qs
Electronics & Communication Engineering (EC) 2017
5 Qs
Electronics & Communication Engineering (EC) 2016 [Session 1]
8 Qs
Electronics & Communication Engineering (EC) 2016 [Session 2]
5 Qs
Electronics & Communication Engineering (EC) 2016 [Session 3]
5 Qs
Electronics & Communication Engineering (EC) 2014 [Session 4]
5 Qs
Electronics & Communication Engineering (EC) 2014 [Session 2]
2 Qs
Electronics & Communication Engineering (EC) 2014 [Session 3]
1 Qs
Electronics & Communication Engineering (EC) 2013 [Session 1]
4 Qs
Electronics & Communication Engineering (EC) 2013 [Session 2]
4 Qs
Electronics & Communication Engineering (EC) 2013 [Session 3]
4 Qs
Electronics & Communication Engineering (EC) 2013 [Session 4]
4 Qs
Electronics & Communication Engineering (EC) 2012
6 Qs

Browse by subtopics

Open a focused page built from the same verified paper data.

Digital Communications

Explore previous-paper coverage, trends and focused practice for Digital Communications.

41 questions18 papers12 years

Analog Communications

Explore previous-paper coverage, trends and focused practice for Analog Communications.

30 questions14 papers12 years

Information Theory

Explore previous-paper coverage, trends and focused practice for Information Theory.

28 questions18 papers12 years

Random Processes

Explore previous-paper coverage, trends and focused practice for Random Processes.

4 questions4 papers4 years

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
Electronics and Communication Engineering (EC) 202620267View paper
Electronics & Communication Engineering (EC) 202520257View paper
Electronics & Communication Engineering (EC) 202420245View paper
Electronics & Communication Engineering (EC) 202320233View paper
Electronics & Communication Engineering (EC) 202220226View paper
Electronics & Communication Engineering (EC) 202120218View paper
Electronics & Communication Engineering (EC) 202020205View paper
Electronics & Communication Engineering (EC) 201920195View paper
Electronics & Communication Engineering (EC) 201820184View paper
Electronics & Communication Engineering (EC) 201720175View paper
Electronics & Communication Engineering (EC) 2016 [Session 1]20168View paper
Electronics & Communication Engineering (EC) 2016 [Session 2]20165View paper
Electronics & Communication Engineering (EC) 2016 [Session 3]20165View paper
Electronics & Communication Engineering (EC) 2014 [Session 2]20142View paper
Electronics & Communication Engineering (EC) 2014 [Session 3]20141View paper
Electronics & Communication Engineering (EC) 2014 [Session 4]20145View paper
Electronics & Communication Engineering (EC) 2013 [Session 1]20134View paper
Electronics & Communication Engineering (EC) 2013 [Session 2]20134View paper
Electronics & Communication Engineering (EC) 2013 [Session 3]20134View paper
Electronics & Communication Engineering (EC) 2013 [Session 4]20134View paper
Electronics & Communication Engineering (EC) 201220126View paper

Sample previous year questions

A varied preview from the papers represented in this selection, with every available option.

1
2012 · Electronics & Communication Engineering · Communications · Random Processes
Electronics & Communication Engineering (EC) 2012
The power spectral density of a real process \(X(t)\) for positive frequencies is shown below. The values of \(E[X^2(t)]\) and \(|E[X(t)]|\), respectively, are

Question diagram

Open complete paper
2
2013 · Electronics & Communication Engineering · Communications · Digital Communications
Electronics & Communication Engineering (EC) 2013 [Session 1]
The bit rate of a digital communication system is \( R \) kbits/s. The modulation used is 32-QAM. The minimum bandwidth required for ISI free transmission is
Open complete paper
3
2013 · Electronics & Communication Engineering · Communications · Digital Communications
Electronics & Communication Engineering (EC) 2013 [Session 2]
The bit rate of a digital communication system is $R$ kbits/s. The modulation used is 32-QAM. The minimum bandwidth required for ISI free transmission is
Open complete paper
4
2013 · Electronics & Communication Engineering · Communications · Digital Communications
Electronics & Communication Engineering (EC) 2013 [Session 3]
The bit rate of a digital communication system is R kbits/s. The modulation used is 32-QAM. The minimum bandwidth required for ISI free transmission is
Open complete paper
5
2013 · Electronics & Communication Engineering · Communications · Digital Communications
Electronics & Communication Engineering (EC) 2013 [Session 4]
The bit rate of a digital communication system is \(R\) kbits/s. The modulation used is 32-QAM. The minimum bandwidth required for ISI free transmission is
Open complete paper
6
2014 · Electronics & Communication Engineering · Communications · Information Theory
Electronics & Communication Engineering (EC) 2014 [Session 2]
The capacity of a band-limited additive white Gaussian noise (AWGN) channel is given by $C = W \log_2 \left(1 + \frac{P}{\sigma^2 W}\right)$ bits per second (bps), where $W$ is the channel bandwidth, $P$ is the average power received and $\sigma^2$ is the one-sided power spectral density of the AWGN.
For a fixed $\frac{P}{\sigma^2} = 1000$, the channel capacity (in kbps) with infinite bandwidth ($W \to \infty$) is approximately
Open complete paper