2 research outputs found
Adaptive time- and location-aware routing in telecom mesh networks
In telecom mesh networks, connections can be provisioned considering their availability requirements. A connection's availability can be estimated based on the links' statistical availability (e.g., depending on historical failure occurrences and repair times).The authors remark that the actual failure statistics depend on (i) when and (ii) where a connection is routed (as failure rates throughout the year and in different locations may be different). Moreover, the failure rate is not homogeneous along a link and a detailed timeā and locationāaware availability calculation is required. Most link failures are caused by digāups, thus there is a direct relationship between construction works, which require excavations, and link failures. So, the probability of a link failure at a certain location depends on (i) the time/day when digāup works are performed and (ii) population of the location (assuming that the more crowded the location is, the more constructions occur). By exploiting the timeā and locationādependent failure information, the authors investigate a novel adaptive timeā and locationāaware routing scheme, which provisions connections on highly available paths depending on a connection's duration and availability requirements. The authors' approach shows significant upgradeācost savings, while satisfying the service requirements, compared with traditional approaches