Why is implementation of MAC protocols important in context of WSNs?
MAC layer protocols for WSNs must be energy efficient to maximize lifetime. Additionally, protocols must be scalable according to the network size and should adapt to changes in the network such as addition of new nodes, death of existing nodes, and transient noise on the wireless channel [5].
What are the advantages of reservation based MAC protocols over contention-based MAC protocols?
The advantage of CATA over other reservation protocols is it permits to establish unicast / multicast / broadcast reservations. Its major drawback is the waste of bandwidth due to control mini-slots. Reserving four mini-slots in each slot reduces the available bandwidth dedicated for the transmission of data packets.
Which protocol is the best choice for communication within a single LAN?
NetBEUI
NetBEUI is the best performance choice for communication within a single LAN. Because, like NetBIOS, it does not support the routing of messages to other networks, its interface must be adapted to other protocols such as Internetwork Packet Exchange or TCP/IP.
What are the features objectives of MAC protocols?
Thus the MAC protocol helps fulfilling important design objectives of WSNs by specifying how nodes employ the radio, share the channel, avoid collision in correlated and broadcasting environments, response the inquirer timely, and survive for a longer period.
Why do wireless sensor nodes need unique global ID?
Network-wide unique IDs are beneficial for administrative tasks requiring reliability, such as configuration and monitoring of individual nodes, and download of binary code or data aggregation descriptions to sensor nodes [3]. Network-wide unique IDs are also required when security is needed in sensor networks [4].
What are the drawbacks of MAC protocol?
Disadvantages: TMAC’s major disadvantage is early sleeping problem in which nodes may sleep as per their activation time and data may get lost especially for long messages. Although there are various MAC layer protocols proposed for sensor networks, however, there is not one protocol which is accepted as a standard.
Which is the most common Internet Protocol?
HTTP – One of the most familiar protocols, hyper text transfer protocol (HTTP) is often referred to as the protocol of the internet. HTTP is an application layer protocol that allows the browser and server to communicate.
What are the characteristics of MAC protocols?
The most important performance requirements for MAC protocols are throughput efficiency, stability, fairness, low access delay, and low transmission delay, as well as a low overhead.
What is the advantage of MAC address?
Here are pros/benefits of using MAC address: It provides a secure way to find senders or receivers in the network. MAC address helps you to prevent unwanted network access. MAC address is a unique number; hence it can be used to track the device.