Codes for Half Duplex Relay Channels
IZS '06 Proceedings of the 2006 International Zurich Seminar on Communications
Low Density Parity Check Codes over Wireless Relay Channels
IEEE Transactions on Wireless Communications
Analysis of sum-product decoding of low-density parity-check codes using a Gaussian approximation
IEEE Transactions on Information Theory
Rate-compatible puncturing of low-density parity-check codes
IEEE Transactions on Information Theory
On the capacity of MIMO relay channels
IEEE Transactions on Information Theory
Cooperative Strategies and Capacity Theorems for Relay Networks
IEEE Transactions on Information Theory
Bilayer Low-Density Parity-Check Codes for Decode-and-Forward in Relay Channels
IEEE Transactions on Information Theory
Low density parity check codes for the relay channel
IEEE Journal on Selected Areas in Communications
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We propose in this paper optimized designs for LDPC codes which are able to work close to the theoretical bounds for the half duplex relay channel using the decode and forward strategy originally proposed by Cover and El Gamal. The challenge is that we have to find two codes operating at different rates and at different SNR's: one for source-destination and the other for relay-destination transmission. We use density evolution together with Gaussian approximation for the design of the proposed irregular LDPC codes. Simulation results show that our proposed LDPC enable to work within less than 1.0 dB from the theoretical limit capacities under different channel conditions.