Patent ID: 8442137
Filing Date: 2013-05-14
Classification: H04L

Abstract:
1. In a multi-carrier communication system, a transmitter for transmitting data with multiple carriers, comprising: a modulator for modulating multi-carrier symbols with the data thereby creating one or more modulated signals; wherein the data sequence for each of the one or more modulated signals is described by an associated data map signal; a processor for measuring a peak-to-average power ratio of the modulated signals; a logic device for comparing the peak-to-average power ratio of the modulated signals with a predetermined threshold and for selecting a modulated signal based on the comparison; a processor for appending the associated data map signal to selected modulated signal to create a re-sequenced signal; wherein the processor appends the associated data map subsequent to the selection of the modulated signal, and; an amplitude filter for reducing peaks of the re-sequenced signal that are outside a predetermined range; a sequencing processor for sequencing the data; and, wherein the logic device is operably connected to the sequencing processor and provides an instruction to re-sequence the data when the first modulated signal has a peak-to-average power ratio greater than the predetermined threshold.