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In this letter, the joint synchronization and localization problem in asynchronous networks using time-of-arrival measurements is addressed. A novel two-step method is proposed. In Step 1, we estimate the clock skew by a linear weighted least squares estimator. In Step 2, we obtain a second-order cone program (SOCP) by applying second-order cone relaxation technique to jointly estimate the source...
Geometry-based optimal power control was proposed in [14] to transform the power-control problem to a new geometrical problem on the position relationship between a line and some points. This scheme provides a novel visual perspective and lowers the complexity of optimization. We generalize this scheme to a larger class of power-control optimization problems so as to maximize the network utility with...
In this paper, we present a new heuristic that generates broadcast schemes in arbitrary networks. The heuristic gives optimal broadcast time for ring, tree and grid if the originator is on the corner. Extensive simulations show that our new heuristic outperforms the best known broadcast algorithms for two different network models representing Internet and ATM networks. It also allows to generate broadcast...
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