On the channel capacity for constant envelope signals with effective bandwidth constraint

Campanella, M.; Mamola, G.

doi:10.1109/26.58749

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Ceq(ach ) [ Ceq(ach) / Bch] Bch Cnorm(ach) Bch1

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2006

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Cited by 6 publications

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“…Ceq(Ach) Cnonn(Ach) Bch = 13 Ba log 2A/£ (12) or Cnorm(Ach) =(13/ p) log 2 A/C (13) where p= Bch/ Ba is the bandwidth expansion term for the optimum angle modulation using the secondmoment bandwidth definitions.…”

Section: Ceq(ach ) [ Ceq(ach) / Bch] Bch Cnorm(ach) Bchmentioning

confidence: 99%

Capacity of a Bandwidth Constrained Constant Envelope Signal

Kalet

2006

2006 IEEE 24th Convention of Electrical &Amp; Electronics Engineers in Israel

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The capacity of constant envelope signals with bandwidth constraints has been an open problem for many years. In this paper we find a lower bound on this capacity, for second-moment bandwidth constrained signals. The bound is found by utilizing classic results on optimum angle modulation. We found that the capacity of constant envelope signals, in the range investigated, was about two-thirds to three-quarters of the capacity of signals with no amplitude constraints. This indicates that it should be possible to find constant envelope modulations, with spectral efficiencies, which more closely approach the efficiencies of QAM signals.

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Section: Ceq(ach ) [ Ceq(ach) / Bch] Bch Cnorm(ach) Bchmentioning

confidence: 99%