Spectral Compensation for Multicarrier Communication
Författare
Summary, in English
Spectral compensation is an information-processing technique applied in the transmitter to improve the spectral efficiency of multicarrier modulation under a given power spectral density constraint. A set of carefully chosen tones, the so-called information tones, carries data. The. remaining tones, referred to as compensation tones, are modulated with a linear combination of the data, such that the spectral characteristic of the transmit signal and thus the throughput are improved. This paper investigates strategies to find the set of compensation tones and presents the optimal solution for the linear combination of the data given the tone-set split. The optimality criterion is maximization of throughput for a time-dispersive Gaussian channel known to the transmitter. Furthermore, a. suboptimal design is proposed, which has low runtime-complexity and achieves near-optimal performance.
Publiceringsår
2007
Språk
Engelska
Sidor
3366-3379
Publikation/Tidskrift/Serie
IEEE Transactions on Signal Processing
Volym
55
Issue
7
Dokumenttyp
Artikel i tidskrift
Förlag
IEEE - Institute of Electrical and Electronics Engineers Inc.
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Nyckelord
- multicarrier modulation
- (PSD) constraint
- power spectral density
- spectral shaping
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1053-587X