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Among the promising solutions for improving the data rates of next generation wireless communication system working in frequency selective fading environments, we find Multiple Input Multiple Output (MIMO) ad hoc networks. Many research results show that MIMO technology could be used to ameliorate the spectral efficiently compared with a Single Input Single Output (SISO) system. Also, ad hoc networks...
Unitary space-time constellation design is considered for noncoherent multiple-antenna communications, where neither the transmitter nor the receiver knows the fading coefficients of the channel. By employing the Clarke's subdifferential theorem of the sum of the kappa largest singular values of a unitary matrix, we present a numerical optimization procedure for finding unitary space-time signal constellations...
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.
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