Wireless Networks and Communication Study Material

WIRELESS NETWORKS AND COMMUNICATION

Table of Contents
1. Encoding and Error Control.....................................................................................................3
2. Multiplexing and Multiple Access...........................................................................................4
3. Wi-Fi........................................................................................................................................7
References........................................................................................................................................9
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1. Encoding and Error Control
a)
The required data rate for robot to wireless controller communication is up to 500 Hz.
b)
Histogram encoding (VQ)
Kernel codebook encoding (KCB)
Super vector encoding (SV)
c)
Error Control
The error control is end the exchange information from transmission application to an
accepting application likes numerous means and each subject to blunder (Agarwal, 2018).
Cyclic Redundancy Check
The CRC is the effective repetition checking strategy and it is depends on two fold
division of the information unit.
Equality checking
The equality checking is a solitary piece and it is used to display the quantity of 1 bit in
the first information like odd or even. The solitary piece event is changed in transmission, the
message will change the quality and the blunder can be identified now.
Flow Control
In data link layer, the flow control is the one of essential issues that controls the flow of
the information for beneficiary and sender. In communication layer, the flow control is
correspondence medium for beneficiary and sender.
Simplex Stop-and-Wait Protocol
In this Protocol we have taken the accompanying suppositions:
 It gives unidirectional Flow of information from sender to recipient.
 The Communication channel is thought to be without blunder.
In this Protocol the Sender basically sends information and sits tight for the affirmation from
Receiver. That is the reason it is called Stop-and-Wait Protocol. This write isn't so much
effective; however it is least complex method for Flow Control. In this plan we take
Communication Channel mistake free, however in the event that the Channel has a few blunders
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