Multicarrier systems based on orthogonal frequency division multiplexing (OFDM) are well suited for application in broadband radio access networks because of their intrinsic robustness for transmission
over very dispersive multipath fading channels. In this paper we examine a modulation technique related to OFDM, called filtered multitone (FMT) modulation, which exhibits significantly lower spectral overlapping between adjacent subchannels than other OFDM schemes, such as discrete multitone (DMT). In particular, we present a comparison of the performance of FMT and DMT systems in the presence of phase noise introduced by the frequency down-conversion circuit, as well as multipath fading of the radio channel. As a measure of system performance we consider the achievable bit rate, which is evaluated by a general analytical procedure.
By: N. Benvenuto, G. Cherubini and L. Tomba
Published in: RZ3194 in 2000
LIMITED DISTRIBUTION NOTICE:
This Research Report is available. This report has been submitted for publication outside of IBM and will probably be copyrighted if accepted for publication. It has been issued as a Research Report for early dissemination of its contents. In view of the transfer of copyright to the outside publisher, its distribution outside of IBM prior to publication should be limited to peer communications and specific requests. After outside publication, requests should be filled only by reprints or legally obtained copies of the article (e.g., payment of royalties). I have read and understand this notice and am a member of the scientific community outside or inside of IBM seeking a single copy only.
Questions about this service can be mailed to reports@us.ibm.com .