A new bandwidth efficient transmit antenna modulation diversity scheme for linear digital modulation

Author

Wittneben, Armin

Author_Institution

ASCOM Tech Ltd., Maegenwil, Switzerland

Volume

3

fYear

1993

fDate

23-26 May 1993

Firstpage

1630

Abstract

A system is proposed and analyzed, which uses several transmit antennas to achieve diversity in a flat fading mobile radio environment. The signals at different antennas carry the same digital information, but have different modulation parameters (modulation diversity). In contrast to other proposals, no bandwidth expansion is required. Modulation diversity for quadrature amplitude modulation (QAM) type modulation is achieved by using different partial response type base pulses. Simulation results confirm the expected gain

Keywords

antenna arrays; diversity reception; fading; land mobile radio; partial response channels; quadrature amplitude modulation; transmitting antennas; QAM; flat fading mobile radio environment; gain; linear digital modulation; partial response type base pulses; quadrature amplitude modulation; transmit antenna modulation diversity scheme; Amplitude modulation; Bandwidth; Digital modulation; Fading; Land mobile radio; Mobile antennas; Proposals; Pulse modulation; Quadrature amplitude modulation; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1993. ICC '93 Geneva. Technical Program, Conference Record, IEEE International Conference on

Conference_Location

Geneva

Print_ISBN

0-7803-0950-2

Type

conf

DOI

10.1109/ICC.1993.397560

Filename

397560