Efficient bit interleaver for a multi-band OFDM...

Details Efficient bit interleaver for a multi-band OFDM... Efficient bit interleaver for a multi-band OFDM...

2007-12-25

2007-12-25

Kim, Kevin (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C714S787000

Reexamination Certificate

active

10797880

ABSTRACT:
An efficient bit interleaving scheme for a multi-band OFDM ultra-wideband (UWB) system. The encoded bits of the multi-band OFDM system are interleaved within each OFDM symbol and across OFDM symbols. The bit interleaving scheme minimizes performance degradation due to groups of contiguous OFDM tones experiencing a poor SNR caused by the frequency selective channel, exploits the frequency diversity across sub-bands, randomizes the effect of co-channel interference from simultaneously operating un-coordinated piconets, and randomizes the impact of generic narrow-band interferers present within the UWB spectrum.

REFERENCES:
patent: 6680931 (2004-01-01), Aigasa et al.
patent: 2001/0030939 (2001-10-01), Vijayan et al.
patent: 2002/0159532 (2002-10-01), Wight
patent: 2004/0076238 (2004-04-01), Parker et al.
patent: 2004/0151109 (2004-08-01), Batra et al.
patent: 2005/0135493 (2005-06-01), Maltsev et al.

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