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Overlay Protection Against Link Failures Using Network Coding, Ahmed Kamal, Aditya Ramamoorthy, Long Long, Shizheng Li
Overlay Protection Against Link Failures Using Network Coding, Ahmed Kamal, Aditya Ramamoorthy, Long Long, Shizheng Li
Ahmed Kamal
This paper introduces a network coding-based protection scheme against single and multiple link failures. The proposed strategy ensures that in a connection, each node receives two copies of the same data unit: one copy on the working circuit, and a second copy that can be extracted from linear combinations of data units transmitted on a shared protection path. This guarantees instantaneous recovery of data units upon the failure of a working circuit. The strategy can be implemented at an overlay layer, which makes its deployment simple and scalable. While the proposed strategy is similar in spirit to the work of …
1+N Network Protection For Mesh Networks: Network Coding-Based Protection Using P-Cycles And Protection Paths, Ahmed Kamal, Aditya Ramamoorthy
1+N Network Protection For Mesh Networks: Network Coding-Based Protection Using P-Cycles And Protection Paths, Ahmed Kamal, Aditya Ramamoorthy
Ahmed Kamal
A method and system for providing protection of multiple communication sessions using the bandwidth resources on the order of those required to protect a single communication session. This is facilitated through the use of network coding on a protection cycle. Transmissions from all connections are coded together using network coding and transmitted in two different directions on a cycle, so that the signal can be recovered by the receiver in two ways: on the working path, and on the protection (cycle) path.