Noncoherent LDPC-Coded Physical-Layer Network Coding Using Multitone FSK

Noncoherent LDPC-Coded Physical-Layer Network Coding using Multitone FSK

A noncoherent two-way relaying system is developed using physical-layer network coding for improved throughput over conventional relaying in a fading channel. Energyefficient noncoherent operation is achieved using multitone frequency shift keying (FSK). A novel soft-output demodulator is developed for the relay, and corresponding achievable exchange rates are found for Rayleigh fading and AWGN...

Noncoherent Detection for Physical-Layer Network Coding

This paper investigates noncoherent detection in a two-way relay channel operated with physical layer network coding (PNC), assuming FSK modulation and short-packet transmissions. For noncoherent detection, the detector has access to the magnitude but not the phase of the received signal. For conventional communication in which a receiver receives the signal from a transmitter only, the phase d...

Physical Layer Network Coding

A main distinguishing feature of a wireless network compared with a wired network is its broadcast nature, in which the signal transmitted by a node may reach several other nodes, and a node may receive signals from several other nodes simultaneously. Rather than a blessing, this feature is treated more as an interference-inducing nuisance in most wireless networks today (e.g., IEEE 802.11). Th...

LDPC Coded M-ary Orthogonal Signaling with Noncoherent Detection

We study the combination of LDPC coding and Mary orthogonal modulation with noncoherent detection on AWGN and Rayleigh fading channels, focusing upon the role of alphabet size M, blocklength N, and the role of iterative demapping of the channelto-bit message data in the iterative message passing decoder.

Orthogonal Physical Layer Network Coding