Constrained capacities for faster-than-Nyquist signaling
Författare
Summary, in English
This paper deals with capacity computations of faster-than-Nyquist
(FTN) signaling. It shows that the capacity of FTN is
higher than the orthogonal pulse linear modulation
capacity for all pulse shapes except the sinc. FTN signals can in fact
achieve the ultimate capacity for the signal power spectral density
(PSD). The paper lower and upper bounds the FTN capacity under the constraint of finite input alphabet. It is often higher than the capacity for comparable orthogonal pulse systems; sometimes it is superior to all forms of orthogonal signaling with the same PSD.
(FTN) signaling. It shows that the capacity of FTN is
higher than the orthogonal pulse linear modulation
capacity for all pulse shapes except the sinc. FTN signals can in fact
achieve the ultimate capacity for the signal power spectral density
(PSD). The paper lower and upper bounds the FTN capacity under the constraint of finite input alphabet. It is often higher than the capacity for comparable orthogonal pulse systems; sometimes it is superior to all forms of orthogonal signaling with the same PSD.
Publiceringsår
2009
Språk
Engelska
Sidor
764-775
Publikation/Tidskrift/Serie
IEEE Transactions on Information Theory
Volym
55
Issue
2
Fulltext
- Available as PDF - 253 kB
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Dokumenttyp
Artikel i tidskrift
Förlag
IEEE - Institute of Electrical and Electronics Engineers Inc.
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Nyckelord
- Shannon capacity
- Faster than Nyquist signals
- bandwidth efficiency
Status
Published
Projekt
- EIT_HSWC:Coding Coding, modulation, security and their implementation
Forskningsgrupp
- Telecommunication Theory
- Informations- och kommunikationsteori
ISBN/ISSN/Övrigt
- ISSN: 0018-9448