An algebraic approach to network coding

TLDR

"Network coding is essential for achieving network capacity; for multicast networks, coding strategies exist that yield maximally robust networks without interior adaptation, and these results hold for both delay‑free and delayed networks." Good. Other: lines with [Other]: - "[Other] 2001 IEEE Int." - "[Other] Symp." These seem like incomplete references: maybe "2001 IEEE International Symposium". The Other section contains only these two lines, which are likely part of a reference. There's no code or data link.

Abstract

We take a new look at the issue of network capacity. It is shown that network coding is an essential ingredient in achieving the capacity of a network. Building on recent work by Li et al. (see Proc. 2001 IEEE Int. Symp. Information Theory, p.102), who examined the network capacity of multicast networks, we extend the network coding framework to arbitrary networks and robust networking. For networks which are restricted to using linear network codes, we find necessary and sufficient conditions for the feasibility of any given set of connections over a given network. We also consider the problem of network recovery for nonergodic link failures. For the multicast setup we prove that there exist coding strategies that provide maximally robust networks and that do not require adaptation of the network interior to the failure pattern in question. The results are derived for both delay-free networks and networks with delays.