Reliable transmission refers to the ability of a communication system to ensure that data is delivered accurately and in a timely manner. This depends on several measures, including:
Error detection and correction: A reliable transmission system employs techniques such as checksum, parity, and cyclic redundancy check to detect and correct transmission errors.
Flow control: Flow control mechanisms help to prevent data loss and congestion by controlling the rate at which data is transmitted between sender and receiver.
Congestion control: Congestion control algorithms help to optimize network performance by preventing the formation of bottlenecks and ensuring that all devices receive balanced data throughput.
Retransmission: A reliable transmission system should be able to resend data packets that are lost or corrupted during transmission until they are successfully received by the receiver.
Quality of Service (QoS): QoS mechanisms ensure that certain traffic types (such as real-time video or voice) are prioritized over less critical traffic.
Network redundancy: A reliable transmission system should have redundancies in place in the event of network failures or disasters to ensure continuity of service.
Overall, a reliable transmission system requires several measures to be in place to ensure data is transmitted accurately, quickly, and efficiently.