IEEE 802.11: IEEE 802.11 stands for wireless LAN that was ratified by the Institute of Electrical and Electronics Engineering. There are many 802.11 standards for wireless LAN technology in the IEEE 802.11. The different 802.11 standards all share some common characteristics. Basic service set (BSS) is a fundamental building block of 802.11 architecture. The BSS also known as Access Point (AP). Every wireless station in 802.11 wants to associate with an access point before it can send or receive network layer data. DIFS: DIFS stands for DCF Interframe Spacing. It is a time delay for which sender wait after finishing its back off, previously sending RTS package. SIFS: SIFS stands for Shortest Interframe Spacing and it is consider as shortest among above mention networking technology. Request to send (RTS)/ clear to send (CTS): The optimal mechanism used by the IEEE 802.11 is RTS. This is used to decreasing the frame collisions which was introduced by the hidden node problem. In order to avoid the collisions problem, the IEEE 802.11 protocol allows a station to use Request to Send (RTS) and Clear to Send (CTS) control frames to reserve access to the channel. When a sender want to send a data frame, it can initial send an RTS frame to the AP. After AP receives the RTS frame, it will responds by broadcasting a CTS frame.

Question

You will write a program that allows the user to keep track of college locations and details about each location. To begin you will create a College python class that keeps track of the csollege's unique id number, name, address, phone number, maximum students, and average tuition cost. Once you have built the College class, you will write a program that stores College objects in a dictionary while using the College's unique id number as the key. The program should display a menu in this order that lets the user: 1) Add a new College 2) Look up a College 4) Delete an existing College 5) Change an existing College's name, address, phone number, maximum guests, and average tuition cost. 6) Exit the program

Answer 1

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Chapter 7, Problem P7P

Program Plan Intro

IEEE 802.11:

IEEE 802.11 stands for wireless LAN that was ratified by the Institute of Electrical and Electronics Engineering.

There are many 802.11 standards for wireless LAN technology in the IEEE 802.11. The different 802.11 standards all share some common characteristics.

Basic service set (BSS) is a fundamental building block of 802.11 architecture. The BSS also known as Access Point (AP).

Every wireless station in 802.11 wants to associate with an access point before it can send or receive network layer data.

DIFS:

DIFS stands for DCF Interframe Spacing. It is a time delay for which sender wait after finishing its back off, previously sending RTS package.

SIFS:

SIFS stands for Shortest Interframe Spacing and it is consider as shortest among above mention networking technology.

Request to send (RTS)/ clear to send (CTS):

The optimal mechanism used by the IEEE 802.11 is RTS. This is used to decreasing the frame collisions which was introduced by the hidden node problem.

In order to avoid the collisions problem, the IEEE 802.11 protocol allows a station to use Request to Send (RTS) and Clear to Send (CTS) control frames to reserve access to the channel.

When a sender want to send a data frame, it can initial send an RTS frame to the AP. After AP receives the RTS frame, it will responds by broadcasting a CTS frame.

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You will write a program that allows the user to keep track of college locations and details about each location. To begin you will create a College python class that keeps track of the csollege's unique id number, name, address, phone number, maximum students, and average tuition cost. Once you have built the College class, you will write a program that stores College objects in a dictionary while using the College's unique id number as the key. The program should display a menu in this order that lets the user: 1) Add a new College 2) Look up a College 4) Delete an existing College 5) Change an existing College's name, address, phone number, maximum guests, and average tuition cost. 6) Exit the program

I need help with this problem and an step by step explanation of the solution from the image described below. (Introduction to Signals and Systems)