An algebraic approach to network coding
IEEE/ACM Transactions on Networking (TON)
Modern Coding Theory
Low-density parity-check codes for nonergodic block-fading channels
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
Design of capacity-approaching irregular low-density parity-check codes
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
A Network Coding Approach to Cooperative Diversity
IEEE Transactions on Information Theory
Low density parity check codes for the relay channel
IEEE Journal on Selected Areas in Communications
Low-Density Graph Codes for Coded Cooperation on Slow Fading Relay Channels
IEEE Transactions on Information Theory
Analysis and construction of full-diversity joint network-LDPC codes for cooperative communications
EURASIP Journal on Wireless Communications and Networking - Special issue on physical-layer network coding for wireless cooperative networks
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We consider the uplink of two mobile stations with the help of one common relay. Recently, joint network-channel coding based on LDPC codes was proposed for this setup where the channel codes at the mobile stations and the network code at the relay form one distributed LDPC code. This approach allows to gain diversity with a higher rate compared to a relay system without network coding. We propose a practical joint network-channel code that follows the structure of the WiMax IEEE 802.16e LDPC code, and that benefits from efficient linear time encoding and reduced storage requirements. We show how to use a modified high girth code at the relay that allows to gain diversity. Further, we compare two decoding methods of the distributed code at the destination. Simulation results for an example with noisy block fading channels against reference systems demonstrate the advantage of the proposed design.