A simple transmit diversity technique for wireless communications

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1998Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:IEEE Journal on Selected Areas in Communications, volume 16, pages 1,451-1,458 (issn: 0733-8716,

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Authors: Siavash M. Alamouti;

doi: 10.1109/49.730453

A simple transmit diversity technique for wireless communications

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Abstract

This paper presents a simple two-branch transmit diversity scheme. Using two transmit antennas and one receive antenna the scheme provides the same diversity order as maximal-ratio receiver combining (MRRC) with one transmit antenna, and two receive antennas. It is also shown that the scheme may easily be generalized to two transmit antennas and M receive antennas to provide a diversity order of 2M. The new scheme does not require any bandwidth expansion or any feedback from the receiver to the transmitter and its computation complexity is similar to MRRC.

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