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The problem presented in this paper is a generalization of the usual coupled-tasks scheduling problem in presence of compatibility constraints. The reason behind this study is the data acquisition problem for a submarine torpedo. We investigate a particular configuration for coupled tasks (any task is divided into two sub-tasks separated by an idle time), in which the idle time of a coupled task is...
We propose an efficient way of constructing the wireless mesh structure associated with molecular MAC, a multichannel access method designed for efficient packet forwarding. We base our role assignment on a restricted weakly connected dominating set structure. After presenting a formal definition of the role assignment problem, we prove its NP-completeness. Then, we propose a centralized 2-approximation...
A multi-channel MAC is a promising approach for improving network throughput by multiplexing transmissions over orthogonal channels. Molecular MAC has recently adopted this approach by proposing to modify the standard IEEE 802.11 DCF. It requires role and channel assignment to nodes: some of them use a static channel while others dynamically switch to neighbor channels on-demand. To assign roles and...
A multichannel MAC improves throughput in wireless mesh networks by multiplexing transmissions over orthogonal channels. In this paper, we propose an efficient way for constructing the wireless mesh structure associated with Molecular MAC, a multichannel MAC layer designed for efficient packet forwarding. Molecular MAC outperforms other classical approaches, but requires a specific structure for efficient...
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