CHAPTER 5 Medium Access Control ( MAC) PROTOCOLS CS5602: Principles and Techniques for Sensors and Information Perception
CHAPTER 5. Medium Access Control (MAC) PROTOCOLS CS5602: Principles and Techniques for Sensors and Information Perception 1
What is a MAc protocol? CS5602: Principles and Techniques for Sensors and Information Perception
What is a MAC protocol? CS5602: Principles and Techniques for Sensors and Information Perception 2
Objectives of MAC Protocols Collision Avoidance Energy Efficiency Scalability Latency Fairness Throughput Bandwidth Utilization CS5602: Principles and Techniques for Sensors and Information Perception
Objectives of MAC Protocols ▪ Collision Avoidance ▪ Energy Efficiency ▪ Scalability ▪ Latency ▪ Fairness ▪ Throughput ▪ Bandwidth Utilization CS5602: Principles and Techniques for Sensors and Information Perception 3
POWER CONSUMPTION RADIO 15 E SENSOR CPU TX RX 工DLE SLEEP CS5602: Principles and Techniques for Sensors and Information Perception
POWER CONSUMPTION CS5602: Principles and Techniques for Sensors and Information Perception 4 SENSOR 0 5 10 15 20 Power (mW) CPU TX RX IDLE SLEEP RADIO
Major Sources of Energy Waste 工 dle listening ★ Transmitter Common to all wireless networks ★R2 ceiver OBJECTIVE: Reduce energy consumption !! CS5602: Principles and Techniques for Sensors and Information Perception
Major Sources of Energy Waste CS5602: Principles and Techniques for Sensors and Information Perception 5 * Idle Listening * Transmitter * Receiver OBJECTIVE: Reduce energy consumption !! Common to all wireless networks