Abstract
Topology control is an important way of reducing the link interference in wireless Ad hoc and sensor networks with shared channel. Modeling link interference is the primary step for designing interference-aware topology controls, and it is very critical to the efficacy of the topology control schemes in use. This paper presents a new link interference model, which can not only be easily calculated with global or local algorithms, but also more effectively profile the link interference in co-channel wireless Ad hoc and sensor networks than previous models. Based on the proposed model, a centralized topology control algorithm is designed to construct interference-optimal topologies. In fact, our model can also be fed into most of the already-existed topology control algorithms aimed at reducing link interferences. Finally, extensive simulations and analysis are conducted to evaluate our designs in detail. The simulation results show the outstanding effectiveness of interference reduction achieved by our model and algorithm, in comparison with the previous work.
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