Abstract : A Two-Way Relay Channel (TWRC) in which duplex transmission between two users via a relay station is considered. A physical layer network coding strategy based on compress-and-forward relaying scheme for the TWRC is proposed. In the underlying coding strategy, we use nested lattices for Wyner-Ziv coding and decoding. The relay uses the weaker side information available at the receivers from the first transmission phase to broadcast a common quantized version of its received signal. We characterize the achievable rate region of the presented scheme. Then we show that lattice codes can achieve random coding rates.
https://hal-supelec.archives-ouvertes.fr/hal-00742209
Contributor : Pierre Duhamel
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Submitted on : Tuesday, October 16, 2012 - 11:15:29 AM
Last modification on : Wednesday, January 23, 2019 - 2:38:28 PM
