A narrow band OFDM

Das, Subhendu; Mohanty, N.

doi:10.1109/vetecf.2004.1404981

Cited by 2 publications

(4 citation statements)

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“…In this context we also point out that it is not necessary to use orthonormal functions in the Fourier series expression (2). The series (2) can be valid even if we use independent functions, 0-1 coefficients, and finite number of terms.…”

Section: Function Modulationmentioning

confidence: 93%

“…Here all the functions, called bit-functions, are orthonormal functions of the series (2) and the bit values, 0 or 1, are the coefficients of the corresponding terms in (2).…”

Section: Function Modulationmentioning

confidence: 99%

“…The fm receiver can be implemented just the way [2] the Fourier coefficients are extracted from a given function.…”

Section: Function Modulationmentioning

confidence: 99%

“…Next we describe the function modulation technology very briefly [2][3][4]. This technology has been experimentally demonstrated in real life, on real time, using off-the-shelf hardware components.…”

Section: Introductionmentioning

confidence: 99%

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Capacity Theorem for Finite Duration Symbols

Das

Mohanty

Singh

2009

2009 Eighth International Conference on Networks

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The proof of capacity theorem assumed that the symbols are of infinite time duration. Since the infinite time symbols are not meaningful and is not used in the existing technology, in this paper we decided to prove it over finite time interval. The result shows that the new capacity of a band limited channel explicitly depends on the sample rate. This new approach helps us to show that all shift keying methods do not meet the Shannon's model and therefore cannot achieve the basic capacity limits. We also show that the function modulation method can be engineered to achieve the new extended limits. To establish our theory we use the well known mathematical concept of infinite dimensionality of function space. The new capacity result is stated in a theorem.

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Section: Function Modulationmentioning

confidence: 93%

“…Here all the functions, called bit-functions, are orthonormal functions of the series (2) and the bit values, 0 or 1, are the coefficients of the corresponding terms in (2).…”

Section: Function Modulationmentioning

confidence: 99%

“…The fm receiver can be implemented just the way [2] the Fourier coefficients are extracted from a given function.…”

Section: Function Modulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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