Four desirablecharacteristics of MAC protocol over a broadcast channel:1. when one node wants to transmit, it can send at rate R.2. when M nodes want to transmit, each can send at averagerateR/M3....

Four desirable
characteristics of MAC protocol over a broadcast channel:

1. when one node wants to transmit, it can send at rate R.

2. when M nodes want to transmit, each can send at average
rate

R/M

3. fully decentralized:

• no special node to coordinate transmissions

• no synchronization of clocks, slots

4. Simple

Which of these characteristics does each protocol have?

TDMA, FDMA ALOHA, CSMA Polling, Token Ring