Abstract
In this letter, a new constellation design for differential unitary space-time modulation is proposed. We generate a set of unitary matrices from the multiplication of a simple unitary matrix with entries of ± 1 by diagonal matrices made from quaternary alphabets. Then, the constellation is formed from the product of the optimum matrix chosen from this set and the optimized diagonal matrix first used for the cyclic codes. We show that, without deteriorating the transmission rate, the proposed constellation yields a larger diversity product as well as a lower union bound for pairwise error probability with the same or a lower complexity compared to other previously proposed constellations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
