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Physical Layer (PHY) techniques such as Spatial Multiplexing, Eigen Beamforming, Eigen Beamnulling, Power Control, Spectrum Segmentation and Link Adaptation have been proved effective in improving the Network Area Spectral Efficiency of ad hoc networks. Several works have focused on optimizing the parameters of these PHY techniques individually to maximize different components of the Network Area...
Path loss in an underwater acoustic channel depends not only on the transmission distance, but also on the signal frequency. As a result, the useful bandwidth decreases with distance, a feature not normally present in terrestrial radio networks. This fact motivates the use of multihop communications in an acoustic network, and strongly influences its design, since the same set of protocols will exhibit...
Three applications in wireless networks where model-free stochastic learning is applicable, are discussed. The learning based optimization problems are formulated and simulation results are presented. Some open issues are also discussed.
This paper explores the attributes, layering models and objective functions in cross layer designs for mobile ad hoc wireless networks by taking all the statistical characteristics and constraints from the physical (PHY) layer, media access control (MAC) layer and network (NET) layer into consideration. This paper reviews the entire network optimization across all the PHY/MAC/NET layers. At the PHY...
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