title: Statistical-mechanics approach to wide-band digital communication.
abstract: The emerging popular scheme of fourth generation wireless communication, orthogonal frequency-division multiplexing, is mapped onto a variant of a random field Ising Hamiltonian and results in an efficient physical intercarrier interference (ICI) cancellation decoding scheme. This scheme is based on Monte Carlo (MC) dynamics at zero temperature as well as at the Nishimori temperature and demonstrates improved bit error rate (BER) and robust convergence time compared to the state of the art ICI cancellation decoding scheme. An optimal BER performance is achieved with MC dynamics at the Nishimori temperature but with a substantial computational cost overhead. The suggested ICI cancellation scheme also supports the transmission of biased signals.
authors.affiliation: Minerva Center and Department of Physics, Bar-Ilan University, Ramat-Gan 52900, Israel.
authors.forename: Hadar
authors.initials: H
authors.lastname: Efraim
authors.forename: Yitzhak
authors.initials: Y
authors.lastname: Peleg
authors.forename: Ido
authors.initials: I
authors.lastname: Kanter
authors.forename: Ori
authors.initials: O
authors.lastname: Shental
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Kabashima