Approximation schemes for covering and packing problems in image processing and VLSI
Journal of the ACM (JACM)
Steiner tree problem with minimum number of Steiner points and bounded edge-length
Information Processing Letters
Minimizing the Number of Optical Amplifiers Needed to Support a Multi-Wavelength Optical LAN/MAN
INFOCOM '97 Proceedings of the INFOCOM '97. Sixteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Driving the Information Revolution
Polynomial time approximation schemes for Euclidean TSP and other geometric problems
FOCS '96 Proceedings of the 37th Annual Symposium on Foundations of Computer Science
An approximation algorithm for a bottleneck k-Steiner tree problem in the Euclidean plane
Information Processing Letters
The Euclidean Bottleneck Steiner Tree and Steiner Tree with Minimum Number of Steiner Points
COCOON '01 Proceedings of the 7th Annual International Conference on Computing and Combinatorics
Deploying sensor networks with guaranteed capacity and fault tolerance
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
Mobile backbone networks --: construction and maintenance
Proceedings of the 7th ACM international symposium on Mobile ad hoc networking and computing
Improving Construction for Connected Dominating Set with Steiner Tree in Wireless Sensor Networks
Journal of Global Optimization
Relay Node Placement in Wireless Sensor Networks
IEEE Transactions on Computers
Connected Dominating Sets in Wireless Networks with Different Transmission Ranges
IEEE Transactions on Mobile Computing
Relay sensor placement in wireless sensor networks
Wireless Networks
Improved Approximation Algorithms for Relay Placement
ESA '08 Proceedings of the 16th annual European symposium on Algorithms
Relay Nodes in Wireless Sensor Networks
WASA '08 Proceedings of the Third International Conference on Wireless Algorithms, Systems, and Applications
Construction and Maintenance of Wireless Mobile Backbone Networks
IEEE/ACM Transactions on Networking (TON)
Connectivity-aware network maintenance and repair via relays deployment
IEEE Transactions on Wireless Communications
On the construction of 2-connected virtual backbone in wireless networks
IEEE Transactions on Wireless Communications
Constrained relay node placement in wireless sensor networks: formulation and approximations
IEEE/ACM Transactions on Networking (TON)
Deploying sensor networks with guaranteed fault tolerance
IEEE/ACM Transactions on Networking (TON)
Backbone construction for heterogeneous wireless ad hoc networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
On improved relay nodes placement in two-tiered wireless sensor networks
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
Constrained low-interference relay node deployment for underwater acoustic wireless sensor networks
COCOA'10 Proceedings of the 4th international conference on Combinatorial optimization and applications - Volume Part II
Energy-efficient roadside unit scheduling for maintaining connectivity in vehicle ad-hoc network
Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication
The euclidean bottleneck steiner path problem
Proceedings of the twenty-seventh annual symposium on Computational geometry
An efficient relay sensors placing algorithm for connectivity in wireless sensor networks
EUC'06 Proceedings of the 2006 international conference on Embedded and Ubiquitous Computing
Resource optimization algorithm for sparse time-driven sensor networks
NETWORKING'10 Proceedings of the 9th IFIP TC 6 international conference on Networking
Survey: A survey on relay placement with runtime and approximation guarantees
Computer Science Review
CCGRID '12 Proceedings of the 2012 12th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (ccgrid 2012)
Relay placement for two-connectivity
IFIP'12 Proceedings of the 11th international IFIP TC 6 conference on Networking - Volume Part II
The subdivision-constrained routing requests problem
Journal of Combinatorial Optimization
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Given n terminals in the Euclidean plane and a positive constant, find a Steiner tree interconnecting all terminals with the minimum number of Steiner points such that the Euclidean length of each edge is no more than the given positive constant. This problem is NP-hard with applications in VLSI design, WDM optical networks and wireless communications. In this paper, we show that (a) the Steiner ratio is 1/ 4, that is, the minimum spanning tree yields a polynomial-time approximation with performance ratio exactly 4, (b) there exists a polynomial-time approximation with performance ratio 3, and (c) there exists a polynomial-time approxi-mation scheme under certain conditions.