q7- Consider a Code Division Multiple Access system in which transmitting users A, B & C have the codes (1 1 1 1 -1 -1 -1 1), (1 1 1 1 1 1 1 1) and (1 1 1 -1 1 1 1 1) respectively similar to the Walsh codes of other users. The receiver intends to receive data transmitted by user C a) Find the bit transmitted if A, B are transmitting 1 and C is idle Result is 6, hence output is 1 Result is -14, hence output is 0 Result is 14, hence output is 1 Result is -6, hence output is 0 Result is Answer, hence output is Answer b) Find the bit transmitted if A, B and C are transmitting 1 Result is 6, hence output is 1 Result is -14, hence output is 0 Result is 14, hence output is 1 Result is -6, hence output is 0 Result is Answer, hence output is Answer

In this case, the received signal is the sum of the signals transmitted by A and B: (1 1 1 1 -1 -1…

Answered: q7- Consider a Code Division Multiple…

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

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q7-

Consider a Code Division Multiple Access system in which transmitting users A, B & C have the codes (1 1 1 1 -1 -1 -1 1), (1 1 1 1 1 1 1 1) and (1 1 1 -1 1 1 1 1) respectively similar to the Walsh codes of other users. The receiver intends to receive data transmitted by user C

a) Find the bit transmitted if A, B are transmitting 1 and C is idle

Result is 6, hence output is 1
Result is -14, hence output is 0
Result is 14, hence output is 1
Result is -6, hence output is 0

Result is Answer, hence output is Answer

b) Find the bit transmitted if A, B and C are transmitting 1

Result is 6, hence output is 1
Result is -14, hence output is 0
Result is 14, hence output is 1
Result is -6, hence output is 0

Result is Answer, hence output is Answer

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