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- Title
Adaptive pulse-shaped OFDM with application to in-home power line communications.
- Authors
D'Alessandro, Salvatore; Tonello, Andrea; Lampe, Lutz
- Abstract
We propose an adaptive pulse-shaped orthogonal frequency division multiplexing (OFDM) scheme where the overhead and active sub-channels are adapted to jointly maximize capacity and fulfill the notching mask for coexistence with other devices operating in the same spectrum. The overhead includes the guard interval to partly compensate the channel dispersion, and the roll-off factor used by the shaping window. We show that significant gains are obtained compared to the case of using a fixed guard interval and roll-off factor. To simplify the implementation complexity we also propose to limit the amount of adaptation by deploying a finite set of overhead parameters. Numerical results are reported for typical wideband power line communication indoor channels.
- Subjects
ORTHOGONAL frequency division multiplexing; SPECTRUM allocation; NUMERICAL analysis; DATA transmission systems; BROADBAND communication systems; COST
- Publication
Telecommunication Systems, 2012, Vol 51, Issue 1, p3
- ISSN
1018-4864
- Publication type
Article
- DOI
10.1007/s11235-010-9410-3