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Seminaire MASCOTTEEnergy saving in fixed wireless broadband networks.
par Issam Tahiri
| Date : | 17/05/11 | | Time : | 10:30 | | Location : | Galois Coriolis |
Ă‚' Fixed broadband wireless communications is a sector of the communication industry that holds great promise for delivering private high-speed data connections. Such network comprises remote locations, each of them served by a radio base station (RBS), connected by means of high-capacity microwave radio links. A bidirectional link connecting two RBSs requires a dedicated pair of outdoor units (ODUs), each one directly coupled to a high-directional antenna. After a small lecture on metric LPs, this seminar will tackle the problem of deciding both the network's configuration and flows that minimize the total energy expenditure. Particularly, by configuration, we mean the choice of which communication devices we need to keep on to successfully meet the traffic requirements. This problem relies on a fixed-charge capacitated network design (FCCND), which is very hard to optimize. We present an exact formulation for this problem and propose heuristics that may be employed to produce good feasible solutions in a short time.
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