Mobile Lattice-Coded Physical-Layer Network Coding with Practical Channel Alignment

Mobile Lattice-Coded Physical-Layer Network Coding With Practical Channel Alignment

Physical-layer network coding (PNC) is a communications paradigm that exploits overlapped transmissions to boost the throughput of wireless relay networks. A high point of PNC research was a theoretical proof that PNC that makes use of nested lattice codes could approach the information-theoretic capacity of a two-way relay network (TWRN), where two end nodes communicate via a relay node. The c...

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...

Rotationally Invariant Coded Modulation for Physical Layer Network Coding in Two-way Relay Fading Channel

This paper investigates a novel coded modulation scheme for Physical Layer Network Coding (PLNC) in the Two-Way Relay (TWR) fading channel. Using a fully-adaptive adaptive soft demodulator and Independent Decoding Levels, the proposed scheme can eliminate the effect of fading on the TWR Channel. To reduce system complexity at the relay, we also provide a low-complexity scheme with a series of f...

Physical-layer security: practical aspects of channel coding and cryptography

ACKNOWLEDGEMENTS Let me start at the beginning and thank my parents. They provided a glorious childhood for me and my siblings in a small town in northern Utah. They are extremely diligent and humble, and they raised their family to appreciate traditional Christian values. No matter where my career leads, if I can only duplicate their success with their children, then I will have no regrets. Th...

A Practical Physical-Layer Network Coding for Fading Channels