Autoren: |
D. Wübben, Y. Lang |
Kurzfassung: |
In this paper a physical-layer network coded twoway relay system applying Low-Density Parity-Check (LDPC) codes for error correction is considered, where two sources A and B desire to exchange information with each other by the help of a relay R. The critical process in such a system is the calculation of the network-coded transmit word at the relay on basis of the superimposed channel-coded words of the two sources. For this joint channel-decoding and network-encoding task a generalized Sum-Product Algorithm (SPA) is developed. This novel iterative decoding approach outperforms other recently proposed schemes as demonstrated by simulation results.
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Dokumenttyp: |
Konferenzbeitrag |
Veröffentlichung: |
Miami, FL, USA, 6. - 10. Dezember 2010 |
Konferenz: |
IEEE 2010 Global Telecommunications Conference (Globecom 2010) |
Dateien: |
BibTEX
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