In relation to access to wireless network (e.g, WiFi), answer the following questions: a. What is…

Assignment Questions
Part A
Q1. In relation to access to wireless network (e.g, WiFi), answer the following questions:
a. What is media access control and why is it important?
b. Give one example each of the controlled access methods and contention based media
access methods?
c. When might one access method be preferred over another in a network, and why?
d. Under what conditions do contention-based media access control techniques
outperform controlled-access techniques (i.e., have lower response time)? Explain.
[3+2+2.5+2.5=10 marks]
Q2. Four users (U1, U2, U3 and U4) are using CDMA access techniques to transmit data to their
respective receivers (U1->R1, U2->R2, U3->R3 and U4->R4). The followings are the
spreading codes and the data that each user wants to send.
Attachments:
3089473_1_Assignment2-2019-Mob-net—wireless.pdf