Creating training sequences for space-time diversity...

Details Creating training sequences for space-time diversity... Creating training sequences for space-time diversity...

2006-07-18

2010-02-23

Ghayour, Mohammad H (Department: 2611)

Pulse or digital communications

Transmitters

Plural diversity

C375S260000, C375S231000, C375S341000, C375S347000

Reexamination Certificate

active

07668255

ABSTRACT:
A training sequence is created for space-time diversity arrangement, having any training sequence length, while limiting the training sequence to a standard constellation. Given a number of channel unknowns that need to be estimated, L, a training sequence can be creates that yields minimum means squared estimation error for lengths Nt=kNPRUS+L−1, for any positive integer k≦1, where NPRUSa selected perfect roots-of-unity sequence (PRUS) of length N. The training sequence is created by concatenating k of the length N perfect roots-of-unity sequences, followed by L−1 initial symbols of that same PRUS. Good training sequences can be created for lengths Ntthat cannot be obtained through the above method by concatenating a requisite number of symbols found through an exhaustive search.

REFERENCES:
patent: 5455844 (1995-10-01), Ishikawa et al.
patent: 6735258 (2004-05-01), Trott et al.
patent: 1187410 (2001-03-01), None
Wai Ho Mow; “A new Unified Construction of Perfect Root-of-Unity Sequences” Spread Spectrum Techniques and Applications Proceedings, 1996., IEEE 4th International Symposium on vol. 3, Sep. 22-25, 1996 pp. 955-959.
Wai Ho Mow, 1996, “A new Unified Construction of Perfect Root-of-Unity Seqeunce”, IEEE Spread Spectrum Techniques and Applications Proceedings, 3:955-959.
Tarokh et al., “On the Computation and Reduction of the Peak-to-Average Power Ratio in Multicarrier Communications”, IEEE Transactions on Communications, vol. 48. No. 1, Jan. 2000.
E Lindskog et al, A Transmit Diversity Scheme for Channels With Intersymbol Interferecne, ICC, 1:307-311, 2000.

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