7/29/2023 0 Comments Stop and wait arq![]() ![]() The Stop and Wait protocol involves waiting for an acknowledgement from the receiver before transmitting the next packet. As a result, the sender may repeatedly transmit the same data packets leading to unnecessary delays and wastage of network bandwidth.įortunately, Automatic Repeat Request (ARQ) methods such as Go-Back-N ARQ and Selective Repeat ARQ have been developed as solutions for dealing with this problem by allowing for retransmission of lost acknowledgments ensuring that all sent data are properly acknowledged by the receiver without unnecessary delay or clogging up of network bandwidth. However, if the acknowledgement gets lost due to network congestion or other errors, there will be no indication that transmission was unsuccessful. When a sender sends data packets, it expects to receive an acknowledgment from the receiver to indicate successful receipt of each packet before sending another one. One of the critical problems with the Stop and Wait protocol is lost acknowledgment. If every fourth packet does not reach its destination due to network problems, only three-quarters of those transmissions will succeed – leaving gaps in the information received by the recipient. The sender will transmit each individual packet and wait for confirmation that it has been received before proceeding to send additional packets. To illustrate this challenge faced by users of the Stop and Wait protocol, consider an example where a file needs to be transmitted across a network with occasional data loss. This problem can occur when a sender transmits a data packet, but it never reaches its intended receiver due to network congestion, interference, or other factors affecting transmission quality. One of the primary issues associated with the Stop and Wait protocol is the potential for lost data during transmission. The Stop and Wait protocol has several problems including lost data, lost acknowledgement, and delayed data or acknowledgment due to network latency or propagation delay. In this article, we will dive deep into understanding the problems associated with Stop and Wait protocol as well as explore effective solutions to combat these issues. ![]() However, like any system, it has its share of drawbacks like lost or delayed data and acknowledgments that can hinder performance. ![]() This method involves sending one packet at a time and awaiting confirmation before moving on to the next, promoting reliability in simplex systems. In today's world of fast-paced communication, the Stop and Wait protocol plays a crucial role in ensuring accurate data transmission between senders and receivers. Don't let lost or delayed data hinder your communication network's performance! Check out this article discussing the challenges and solutions with Stop and Wait protocol. ![]()
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