verkkokoodaus

Verkkokoodaus, also known as network coding, is a technique used in telecommunications and computer networks to improve data transmission efficiency and reliability. Instead of simply forwarding packets as they arrive, network nodes that employ verkkokoodaus can combine packets using mathematical operations, such as XOR, before retransmitting them. This process allows for the creation of redundant information within the network.

The primary benefit of verkkokoodaus lies in its ability to combat packet loss. In traditional networks, if a packet is lost, the receiver must request a retransmission, which can significantly delay data delivery. With verkkokoodaus, if some packets are lost, the receiver can still reconstruct the original data by combining the received packets. This is because the combined packets contain enough information to derive the missing ones.

Verkkokoodaus can be applied in various network scenarios, including wireless networks, multicast transmissions, and distributed storage systems. It offers advantages such as increased throughput, reduced latency, and enhanced robustness against network failures or adversarial attacks. While the implementation of verkkokoodaus can add computational overhead to network nodes, ongoing research aims to optimize these processes for greater efficiency. The theoretical foundations of verkkokoodaus were laid by Ahlswede, Cai, Li, and Yeung in 2000.