Rate adaptation using error vector magnitude

Details Rate adaptation using error vector magnitude Rate adaptation using error vector magnitude

2007-02-28

2010-11-02

Fan, Chieh M (Department: 2611)

Pulse or digital communications

Testing

Data rate

C375S224000, C375S346000, C375S147000

Reexamination Certificate

active

07826521

ABSTRACT:
Rate adaptation is accurately provided by using an average SNR technique, a predicted PER technique, or an EVM to PER mapping technique. An average SNR is computed by averaging EVM values in a particular domain. Using the computed average SNR, an optimized rate is determined. The predicted PER technique includes computing EVM values for a current packet, determining an average BER using these EVM values for each data rate, determining an average SNR from this average BER, using the average SNR and a PER versus SNR curve to determine the predicted PER for each data rate, and using a data rate and the predicted PER to compute the predicted throughput for that data rate. In the last technique, an EVM is mapped to a packet error rate (PER) for each data rate. A throughput is computed for each data rate and PER. A data rate with a high throughput is selected.

REFERENCES:
patent: 5862451 (1999-01-01), Grau et al.
patent: 6757522 (2004-06-01), Naegeli et al.
patent: 6898198 (2005-05-01), Ryan et al.
patent: 6917389 (2005-07-01), Lee
patent: 7315578 (2008-01-01), Cheng
patent: 7411935 (2008-08-01), Ryan et al.
patent: 7505367 (2009-03-01), Abdi
patent: 7561048 (2009-07-01), Yushkov et al.
patent: 2003/0105409 (2003-06-01), Donoghue et al.
patent: 2006/0245347 (2006-11-01), Jayaraman et al.
patent: 2006/0280263 (2006-12-01), Yang
patent: 2007/0099577 (2007-05-01), Lee et al.
patent: 2007/0139200 (2007-06-01), Yushkov et al.
patent: 2007/0206695 (2007-09-01), Ye et al.
patent: 2007/0237269 (2007-10-01), Lillo et al.
patent: 2007/0258366 (2007-11-01), Imamura
patent: 2008/0056181 (2008-03-01), Imamura et al.
patent: 2008/0207143 (2008-08-01), Skarby et al.
patent: 2008/0268857 (2008-10-01), McCoy et al.
patent: 2009/0207930 (2009-08-01), Sirkeci et al.

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