Higher order differential matrix modulation

Author

Bauch, Gerhard

Author_Institution

DoCoMo Euro-Labs, Munich, Germany

fYear

2004

fDate

27 June-2 July 2004

Firstpage

187

Abstract

We propose an extension of differential unitary space-time matrix modulation by an additional differential amplitude modulation for bandwidth-efficient transmission with noncoherent detection in a wireless system with multiple transmit antennas. The input bits are subdivided into two groups. The first group chooses a unitary matrix, the second group determines the amplitude of the transmit matrix. Compared to differential unitary space-time modulation, the proposed scheme has lower detection complexity and provides superior performance for bandwidth-efficient transmission, particularly in time-varying channels.

Keywords

amplitude modulation; antenna arrays; channel coding; matrix algebra; modulation coding; radio networks; space-time codes; time-varying channels; transmitting antennas; bandwidth-efficient transmission; differential amplitude modulation; multiple transmit antenna; time-varying channel; unitary space-time matrix modulation; wireless system; Amplitude modulation; Analytical models; Bit rate; Channel capacity; Modulation coding; Mutual information; Phase modulation; Phase shift keying; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on

Print_ISBN

0-7803-8280-3

Type

conf

DOI

10.1109/ISIT.2004.1365226

Filename

1365226