Equalization of transmit diversity space-time coded signals

Details Equalization of transmit diversity space-time coded signals Equalization of transmit diversity space-time coded signals

2005-08-25

2008-12-23

Corrielus, Jean B (Department: 2611)

Pulse or digital communications

Equalizers

C375S347000, C375S350000, C375S265000

Reexamination Certificate

active

07469006

ABSTRACT:
In connection with transmitted space-time, trellis encoded, signals that pass through a transmission channel that is characterized by memory, improved performance is realized with a receiver that combines a decoder with an equalizer that selects the trellis transition, s, that minimizes the metricξj⁡(k)=r⁡(k)-∑l=L1+1L1⁢h~j⁡(l)⁢s~⁡(k-l)-∑l=L1+1L+1⁢h~j⁡(l)⁢s^⁡(k-l)2where {tilde over (h)}j(l) is related to both the transmission channel and to the encoding structure in the transmitter, {tilde over (s)}(k) are the (trial) symbols according to a certain transition and ŝ(k) are the symbols that were previously decided.

REFERENCES:
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patent: 5970060 (1999-10-01), Baier et al.
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patent: 6678263 (2004-01-01), Hammons et al.
patent: 7324482 (2008-01-01), Hammons et al.
patent: 2004/0146014 (2004-07-01), Hammons et al.

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