Title | ||
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Topology forming and optimization framework for heterogeneous wireless back-haul networks supporting unidirectional technologies |
Abstract | ||
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Wireless operators, in developed or emerging regions, must support triple-play service offerings as demanded by the market or mandated by regulatory bodies through so-called Universal Service Obligations (USOs). Since individual operators might face different constraints such as available spectrum licenses, technologies, cost structures or a low energy footprint, the EU FP7 CARrier grade wireless MEsh Network (CARMEN) project has developed a carrier-grade heterogeneous multi-radio back-haul architecture which may be deployed to extend, complement or even replace traditional operator equipment. To support offloading of live triple-play content to broadcast-optimized, e.g., DVB-T, overlay cells, this heterogeneous wireless back-haul architecture integrates unidirectional broadcast technologies. In order to manage the physical and logical resources of such a network, a centralized coordinator approach has been chosen, where no routing state is kept at plain WiBACK Nodes (WNs) which merely store QoS-aware MPLS forwarding state. In this paper we present our Unidirectional Technology (UDT)-aware design of the centralized Topology Management Function (TMF), which provides a framework for different topology and spectrum allocation optimization strategies and algorithms to be implemented. Following the validation of the design, we present evaluation results using a hybrid local/centralized topology optimizer showing that our TMF design supports the reliable forming of optimized topologies as well as the timely recovery from node failures. |
Year | DOI | Venue |
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2013 | 10.1016/j.jnca.2012.12.022 | J. Network and Computer Applications |
Keywords | DocType | Volume |
aware design,centralized topology optimizer,wireless operator,unidirectional technology,QoS-aware MPLS forwarding state,centralized coordinator approach,back-haul network,optimization framework,TMF design,back-haul architecture,available spectrum licenses,centralized Topology Management Function,heterogeneous wireless | Journal | 36 |
Issue | ISSN | Citations |
2 | 1084-8045 | 7 |
PageRank | References | Authors |
0.68 | 20 | 3 |
Name | Order | Citations | PageRank |
---|---|---|---|
M. Kretschmer | 1 | 53 | 9.39 |
P. Batroff | 2 | 7 | 0.68 |
G. Ghinea | 3 | 261 | 26.74 |