MAC Protocols for Wireless Sensor Networks

Collision, overhearing, packet overhead

Single chip with embedded memory, processor, and transceiver

Communication is more energy-consuming than computation

<p>Target tracking and border surveillance</p> Signup and view all the answers

<p>Limited coverage and communication range compared to other mobile devices</p> Signup and view all the answers

<p>Exhausted batteries are hard to charge/replace</p> Signup and view all the answers

<p>Idle listening is listening to receive possible traffic that is not sent.</p> Signup and view all the answers

<p>The main goal is to minimize energy waste due to idle listening, overhearing, and collision.</p> Signup and view all the answers

<p>Energy efficiency, latency, and throughput.</p> Signup and view all the answers

<p>Broadcast, convergecast, and local gossip.</p> Signup and view all the answers

<p>It is used by a base station to transmit information to all sensor nodes of the network.</p> Signup and view all the answers

<p>It is a kind of communication where a sensor sends a message to its neighboring nodes within a range.</p> Signup and view all the answers

<p>It involves a group of sensors communicating to a specific sensor or base station.</p> Signup and view all the answers

<p>Sensor nodes are battery powered, and it's difficult to change or recharge their batteries.</p> Signup and view all the answers

<p>It helps in reducing energy wastage and prolonging the lifespan of sensor nodes.</p> Signup and view all the answers

<p>Throughput requirement varies with different applications, and some applications require higher throughput for data sampling.</p> Signup and view all the answers

<p>Collision, overhearing, and packet overhead</p> Signup and view all the answers

<p>It is generally hard or impractical to charge or replace the exhausted battery in WSNs because of the distributed and often inaccessible deployment of sensor nodes.</p> Signup and view all the answers

<p>The primary concern is to minimize communication while achieving the desired network operation, as communication is more energy-consuming than computation in sensor nodes.</p> Signup and view all the answers

<p>Low-cost sensor nodes are composed of a single chip with embedded memory, processor, and transceiver.</p> Signup and view all the answers

<p>Sensor networks must include a large number of nodes to successfully cover the target area, especially in applications like target tracking and border surveillance.</p> Signup and view all the answers

<p>Energy efficiency is crucial for MAC protocols in sensor networks to minimize energy consumption and extend the operational lifespan of the sensor nodes.</p> Signup and view all the answers

<p>Minimizing idle listening is important in sensor networks to reduce energy wastage and improve energy efficiency of sensor nodes.</p> Signup and view all the answers

<p>The three types of communication patterns defined in wireless sensor networks are broadcast, convergecast, and local gossip.</p> Signup and view all the answers

<p>Energy efficiency is crucial for MAC protocols in sensor networks because sensor nodes are often battery powered and it's difficult to replace or recharge their batteries.</p> Signup and view all the answers

<p>The significance of throughput in sensor network applications lies in the varying throughput requirements for different applications, such as the need for fine temporal resolution in certain sensor applications.</p> Signup and view all the answers

<p>The main goal of any MAC protocol for sensor networks is to minimize energy wastage due to idle listening, overhearing, and collisions.</p> Signup and view all the answers

<p>Sensor networks must include a large number of nodes in some applications to meet the throughput and data sampling requirements of those applications.</p> Signup and view all the answers

<p>The local gossip communication pattern in WSNs involves a sensor sending a message to its neighboring nodes within a range.</p> Signup and view all the answers

<p>It is generally hard or impractical to charge or replace the exhausted battery in WSNs because sensor nodes are often deployed in remote or inaccessible locations.</p> Signup and view all the answers

<p>The attributes to be considered for designing a good MAC protocol for WSNs include energy efficiency, latency, and throughput.</p> Signup and view all the answers

<p>The major sources of energy waste in wireless sensor networks are idle listening, overhearing, and collision.</p> Signup and view all the answers