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Study of retransmission protocol with compute-and-forward in multi-source multi-relay network

By Rithea NGETH, Yuto LIM, Brian M. KURKOSKI and Yasuo TAN


A PNC approach, compute-and-forward (CF) based on nested lattice codes (NLC) [1], linearly combines the block signals (codewords) of multiple sources that transmit their data simultaneously to the common receiver. For the application of CF in multi-source multi-relay network (MSMRN), the destination needs to correctly receive sufficient linearly independent combined codewords forwarded from the relays to recover the original packets of all sources [1]. If not sufficient, the retransmissions from sources are needed. The work in [2] manages there transmissions by using the status of packet reception at the destinations. Our work aims to study the retrainsmission protocol in MSMRN where CF is employed by proposing are transmission scheme where in addition to transmitting new packet with expecting that the unrecovered previous packets will be decoded in future round, the fairness between sources is also considered

Topics: Compute-and-forward, retransmission scheme, nested lattice codes, Multi-source multi-relay network
Publisher: The Institute of Electronics, Information and Communication Engineers (IEICE)
Year: 2018
OAI identifier:
Provided by: JAIST Repository

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