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NETCOOP
2007
Springer
13 years 11 months ago
A New Necessary Condition for Shortest Path Routing
In shortest path routing, traffic is routed along shortest paths defined by link weights. However, not all path systems are feasible in that they can be realized in this way. This...
Mats Petter Pettersson, Krzysztof Kuchcinski
GLOBECOM
2007
IEEE
13 years 11 months ago
Multiconstrained QoS Routing: Greedy is Good
— A fundamental problem in quality-of-service (QoS) routing is to find a path connecting a source node to a destination node that satisfies K ≥ 2 additive QoS constraints. Th...
Guoliang Xue, Weiyi Zhang
CORR
2008
Springer
133views Education» more  CORR 2008»
13 years 5 months ago
Approximation Algorithms for Shortest Descending Paths in Terrains
A path from s to t on a polyhedral terrain is descending if the height of a point p never increases while we move p along the path from s to t. No efficient algorithm is known to ...
Mustaq Ahmed, Sandip Das, Sachin Lodha, Anna Lubiw...
SIAMCOMP
2010
93views more  SIAMCOMP 2010»
12 years 12 months ago
Tightening Nonsimple Paths and Cycles on Surfaces
We describe algorithms to compute the shortest path homotopic to a given path, or the shortest cycle freely homotopic to a given cycle, on an orientable combinatorial surface. Unli...
Éric Colin de Verdière, Jeff Erickso...
ICC
2011
IEEE
217views Communications» more  ICC 2011»
12 years 4 months ago
A Distributed Algorithm for Multi-Constrained Anypath Routing in Wireless Mesh Networks
— Anypath routing, a new routing paradigm, has been proposed to improve the performance of wireless networks by exploiting the spatial diversity and broadcast nature of the wirel...
Xi Fang, Dejun Yang, Guoliang Xue