Answered: 1. If they each want to send the…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Question

1. If they each want to send the following bit show the total signal sent

Reciever	Code
R1	1
R2	1
R3	0
R4	1

2. How would R1 recover its signal?.

3. Consider a case with the same codes but only R1 wants to send.

Reciever	Code
R1	1
R2	-
R3	-
R4	-

What signal would be sent, and how would R1 recover its signal now?

4. If an error occurs in question 12, and some bits are flipped in the signal sent from positive to negative or the other way around, how many bits minimum would need to be flipped for R1 to recover the wrong signal?

5. CDMA has another important real-world use in addition to multiple access. Given the answer to the previous question, what do you think that purpose is? How does it accomplish this?

Note: this is one big question where each part couldn't be seperately asked.

The picture below is the 4 recievers from the start of the question.

Consider 4 receivers near each other using CDMA (code division multiple access)
to communicate. They have the following codes:
Reciever
R1
R2
R3
R4
Code
-1,-1, 1, 1
-1,-1,-1,-1
-1, 1, 1,-1
-1, 1,-1, 1

Expert Solution

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions