Effective bandwidth optimization for noncoherent full-response CPM systems

Campanella, M.; Mamola, G.; Randazzo, E.

doi:10.1109/26.241740

Cited by 6 publications

(1 citation statement)

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“…Introducing the difference sequence y = u,u 2 , so that y, E (-2,0,2} , it can be rewritten as: (7) The minimum Euclidean distance D, is attained in correspondence with a suitable minimising sequence consisting of a finite number of non zero terms which add to zero. Assuming that yo and yk are respectively the first and the last non zero terms of such sequence, the minimum Euclidean distance d, normalised to the bit energy V i T/2, becomes:…”

Section: Introductionmentioning

confidence: 99%

A study on spectral optimisation in partial response CPM signals

Campanella

Garbo

Mamola

et al. 1995

Trans Emerging Tel Tech

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An optimisation technique for the minimisation of the effective bandwidth in partial'response CPM signals is described. The minimum Euclidean distance is used as optimisation constraint because the bit error probability is a function of this parameter for high values of signal to noise ratio. The procedure has been implemented for a correlation length corresponding to two signalling intervals. The optimisation problem leads to a system of two nonlinear differential equations for the pulse shape, together with some boundary conditions. Numerical solution of the differential equations has been performed; initial conditions have been adjusted, to satisfy the boundary conditions using an iteration method based on the Newton-Raphson algorithm. The whole procedure is based on a particular assumption about the minimising difference sequence for the minimum Euclidean distance. This assumption has been tested and the limit value of the modulation index satisfying the test is also mported.

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Section: Introductionmentioning

confidence: 99%