Practical coding and metric calculation for the lattice...

Details Practical coding and metric calculation for the lattice... Practical coding and metric calculation for the lattice...

2006-04-25

2006-04-25

Chase, Shelly (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Error/fault detection technique

C714S755000

Reexamination Certificate

active

07036071

ABSTRACT:
A communication system includes a lattice interfered channel to transmit data from a transmitter to a receiver. In one embodiment, an encoding-modulation scheme having a rich signal constellation is used to encode data at a total rate of 0.7 bit/dimension or less before transmission into the lattice interfered channel. In another embodiment, decoding metric approximation techniques are used to process signals received from the lattice interfered channel. In still another embodiment, multilevel code (MLC) decoding is used to jointly decode an error correction code component and a lattice/MLC component of a received signal. The error correction code component may then be extracted from the decoded signal.

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Wang et al., Leech lattice coding and modulation for IEEE 802.11A WLAN, 2001, IEEE, p. 38-42.
Be'ery et al., Fast decoding of the leech lattice, Aug. 1989, IEEE Journal on Selected areas in Comm. vol. 7, No. 6, p. 956-966.
Erez, U , et al., “Capacity and Lattice-Strategies for Canceling Known Interference”,Proceedings of ISITA 2000, Honolulu, Hawaii, (Nov. 2000), 681-684.
Forney Jr., G D., et al., “Sphere-bound-achieving coset codes and multilevel coset codes”,IEEE Transactions on Information Theory, 46(3), (May 2000), 820-850.

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