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Abstract -In this paper, we present optimization tasks of the spectral and power efficiency of the m-ary channels' in wireless and mobile networks. The invariant efficiency criterions based on the m-ary digital channel's Shannon capacity are introduced. Two invariant fundamental resources efficiency optimums are investigated: first - the maximum spectral(More)
This thesis concerns hyperbolic Coxeter polytopes, their reflection groups and associated combinatorial and geometric invariants. Given a Coxeter group realisable as a discrete subgroup of the isometry group of the n-dimensional hyperbolic space, there is a fundamental domain naturally associated to it. This domain is a Coxeter polytope. Vice versa, given a(More)
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