Decoding for generalized orthogonal designs for space-time codes for wireless communication
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United States of America Patent
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Jul 11, 2000
Grant Date -
N/A
app pub date -
Nov 6, 1998
filing date -
Nov 6, 1998
priority date (Note) -
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Abstract
The prior art teachings for encoding signals and transmitting them over a plurality of antennas are advanced by disclosing a method for encoding for any number of transmitting antennas. Also disclosed is a generalized approach for maximum likelihood decoding where a decision rule is formed for all of the transmitting antennas of a transmitter, and a decision is made in favor of the transmitted symbols the minimize the equation ##EQU1## r.sub.t.sup.j is the signal received at time interval t, at receiving antenna j, h*.sub..epsilon..sbsb.t.sub.(i)j is the complex conjugate of the channel transfer function between the transmitter antenna that is transmitting symbol c.sub.i and receiving antenna j, and .delta..sub.t (i) is the sign of symbol c.sub.i in time interval t.
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