Transmission system using code designed for transmission with pe

Details Transmission system using code designed for transmission with pe Transmission system using code designed for transmission with pe

1995-10-30

2000-09-26

Tse, Young T.

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

375298, 714786, H04L 512, H04L 2726

Patent

active

06125150&

ABSTRACT:
The present invention discloses an OFDM transmission system providing a high level of performance on a variety of frequency selective channels by using a code having the characteristics of maximum PPD and maximum PECL, and a constellation having size 2.sup.n where n generally is greater than k+1, where k is the number of bits in each symbol input to the convolutional encoder. The codes are designed to allow high SNR subchannels to carry their full potential of information which is then used to compensate for information lost on low SNR subchannels.

REFERENCES:
patent: 4945549 (1990-07-01), Simon et al.
patent: 5214656 (1993-05-01), Chung et al.
patent: 5289501 (1994-02-01), Seshadri et al.
patent: 5301209 (1994-04-01), Wei
patent: 5363408 (1994-11-01), Paik et al.
patent: 5559561 (1996-09-01), Wei
Leung, Yiuman S., Wilson, Stephen G., Ketchum, John W., "Multifrequency Trellis Coding with Low Delay for Fading Channels,", IEEE Transactions on Communications, vol. 41, No. 10, Oct. 1999.

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