Performance limits for filtered multitone modulation in fading channels

Authors:
A. M. Tonello
Affiliations:
Dipt. di Ingegneria Elettrica, Univ. di Udine, Italy
Venue:
IEEE Transactions on Wireless Communications
Year:
2005

Citing 0
Cited 2

Packet format design and decision directed tracking methods for filter bank multicarrier systems

EURASIP Journal on Advances in Signal Processing - Special issue on filter banks for next-generation multicarrier wireless communications
Design of orthogonal filtered multitone modulation systems and comparison among efficient realizations

EURASIP Journal on Advances in Signal Processing - Special issue on filter banks for next-generation multicarrier wireless communications

Quantified Score

Hi-index	0.01

Visualization

Abstract

In this paper, we investigate the best attainable performance for filtered multitone modulation (FMT) in time-variant frequency-selective fading channels when optimal maximum-likelihood (ML) detection is deployed. FMT generalizes the popular orthogonal frequency division multiplexing (OFDM) scheme through the deployment of subchannel shaping filters. The performance limits are derived by extending to this multichannel context the matched filter bounding technique. We first conduct an exact calculation for the average and the distribution of the matched filter error rate bound. Then, we follow a numerical procedure that overcomes the problems of accuracy and ill conditioning in the implementation of the exact method. This study allows for an analytical treatment of the diversity effect on performance as a function of the time/frequency selectivity of the channel. It is found that FMT is a diversity transform that is capable of yielding coding gains and time/frequency diversity gains as a function of the subcarrier spacing and the subchannel filter shape.