Method to increase data rate/robustness by using ternary precoded signals for transmission

Abstract

A method for modulation of a signal with first binary data is provided in which the first binary data include a sequence of first binary numbers, wherein each first binary number includes either a first binary numerical value or a second binary numerical value. The method includes generating ternary data that includes a sequence of ternary numbers, where each ternary number comprises a first, second, or third ternary numerical value. The method also includes modulating a phase of the signal with the ternary data, where the phase of the signal can assume M different phase states, where M>2. The first, second, and third ternary numerical values correspond to first, second, and third state transitions between the M phase states. In the first state transition, a phase state is maintained, while in the second state transition and third state transition a change in the phase state is produced. According to one embodiment, the ternary data is generated such that all first binary numbers with the first binary numerical value are allocated to ternary numbers with the first ternary numerical value, and such that all first binary numbers with the second binary numerical value are allocated to ternary numbers with the second or third ternary numerical value so that in the sequence of ternary numbers, the second ternary numerical value does not directly follow the third numerical value and vice versa.