Creating training sequences for space-time diversity...

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

2006-12-26

2006-12-26

Corrielus, Jean B. (Department: 2611)

Pulse or digital communications

Transmitters

Plural diversity

C375S260000, C375S231000, C375S341000, C375S347000

Reexamination Certificate

active

07154964

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 NPRUSis a 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: 2001/0036235 (2001-11-01), Kadous
patent: 1187410 (2001-03-01), None
Wai Ho Mow, 1996, “A new Unified Construction of Perfect Root-of-Unity Sequence”, 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 Interference, ICC, 1:307-311, 2000.

Affiliated with

Also associated with

Rating

Creating training sequences for space-time diversity... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Creating training sequences for space-time diversity..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Creating training sequences for space-time diversity... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3687270