TransmissionsLatenz

TransmissionsLatenz, or transmission latency, is a measure used in telecommunications and networking to describe the time required to push all bits of a data packet onto the transmission medium after the packet has been prepared for sending. It is one component of the broader concept of end-to-end network latency, which also includes propagation, processing, and queuing delays.

In a simplified model, the transmission delay on a link depends on the packet size and the link’s bandwidth. If a packet has L bits and the link bandwidth is B bits per second, the transmission delay is L divided by B seconds. For example, a 8000-bit packet on a 100 Mbps link yields a transmission delay of 0.08 milliseconds. This component grows with larger packets and with lower bandwidth, and it can be affected by factors such as framing, encoding, and error-control coding that alter the effective number of bits that must be transmitted.

Total end-to-end latency is the sum of transmission delay, propagation delay (distance divided by signal speed), processing delay (time to handle the packet in routers and devices), and queuing delay (time spent waiting in buffers during congestion). TransmissionsLatenz is particularly important for links with high bandwidth constraints or large packet sizes, and it interacts with network congestion and device performance.

Measurement and optimization often involve one-way timing or careful synchronization, since many common tools report round-trip times. Mitigation strategies include increasing link bandwidth, reducing packet sizes, using data compression, applying quality-of-service controls, and deploying edge computing or closer routing to minimize queuing and propagation effects.