Turbo Coding, Turbo Equalisation and Space-Time Coding for Transmission over Fading Channels
Turbo Coding, Turbo Equalisation and Space-Time Coding for Transmission over Fading Channels
Distributed turbo product codes over multiple relays
CCNC'10 Proceedings of the 7th IEEE conference on Consumer communications and networking conference
Iterative decoding of binary block and convolutional codes
IEEE Transactions on Information Theory
Distributed Turbo Coding With Soft Information Relaying in Multihop Relay Networks
IEEE Journal on Selected Areas in Communications
Low density parity check codes for the relay channel
IEEE Journal on Selected Areas in Communications
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In this paper, we propose a Distributed Turbo Product Code (DTPC) with soft information relaying over cooperative network using block Extended Bose Chaudhuri Hochquenghem (EBCH) codes as component codes. The source broadcasts extended EBCH coded frames to the destination and to a preassigned relay. After soft-decoding the received sequences and obtaining the Log-Likelihood Ratio (LLR) values, the relay constructs a product code by arranging the decoded bit sequences in rows and re-encoding them along the columns using a novel soft block encoding technique to obtain soft parity bits with different reliabilities that can be used as soft Incremental Redundancy (IR) for source's data which is forwarded to the destination. A modified turbo product decoder to cope with the data received over different channels and thus having different reliabilities is used at the destination. We compared the simulation results in Additive White Gaussian Noise (AWGN) channel using network scenarios with our previous work for Decode and Forward (DF) DTPC and with non-cooperative case. Results show O.5dB gain improvement over the non-cooperative Turbo Product Codes (TPC) at Bit Error Rate (BER) 10-4. In addition, the BER performance is less affected by the decoding errors at the relay.