Modified High-Order PAMs for Binary Coded Physical-Layer Network Coding

• Published in: IEEE communications letters Vol. 14; no. 8; pp. 689 - 691
• Main Authors: HYUN JONG YANG, CHOI, Youngchol, CHUN, Joohwan
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-08-2010; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Access methods and protocols, osi model; Amplitude modulation; Applied sciences; binary channel code; Channels; Coding; Coding, codes; Computation; Computational complexity; Computational efficiency; Decoding; Exact sciences and technology; Information, signal and communications theory; Lattices; Modulation; Modulation coding; Network coding; Networks; Niobium compounds; Physical layer; Physical-layer network coding (PNC); pulse amplitude modulation (PAM); Pulse modulation; Relaying; Relays; Signal and communications theory; Switching and signalling; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Teleprocessing networks. Isdn; Transmission and modulation (techniques and equipments); Relaying; Binary channel; Transmission protocol; Physical-layer network coding (PNC); Trellis code; Signalling; Channel coding; Binary code; Computational complexity; Binary coding; binary channel code; Pulse amplitude modulation; Routing protocols; pulse amplitude modulation (PAM)
• ISSN: 1089-7798; 1558-2558
• DOI: 10.1109/LCOMM.2010.08.100166

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.