Modified high-order PAMs for binary coded physical-layer network coding

Authors:
Hyun Jong Yang;Youngchol Choi;Joohwan Chun
Affiliations:
Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Republic of Korea;Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Republic of Korea and Korea Ocean Research & Development Institute;Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Republic of Korea
Venue:
IEEE Communications Letters
Year:
2010

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Abstract

The non-binary code (NBC) or the lattice code (LC) has been the only possible channel code with the pulse amplitude modulation (PAM) signaling of modulation size greater than two for the physical layer network coding (PNC) over a decode-and-forward (DF) relaying channel. A major drawback with the NBC or LC however is its high computational complexity. In this letter, we present new modified high-order PAMs that enable us to use the computationally efficient binary channel coding under the PNC over a DF relaying channel.