When analog meets digital: Source-Encoded Physical-Layer Network Coding
作者： Raphaël Naves , Gentian Jakllari , Hicham Khalifé , Vania Conan , André-Luc Beylot
DOI: 10.1016/J.PMCJ.2019.05.002
关键词:
摘要: Abstract We revisit Physical-Layer Network Coding (PLNC) in order to integrate this interference management technique multi-hop wireless networks. identify its strong coupling the Two-Way Relay Channel (TWRC) as a main reason preventing it from becoming staple large introduce SE-PLNC (Source-Encoded PLNC), new PLNC scheme that is traffic pattern independent and involves coordination only among one-hop neighbors, making significantly more practical adopt To accomplish this, introduces three innovations: combines bit-level with physical-level network coding, shifts most of coding burden relay source scheme, leverages multi-path relaying opportunities available particular flow. evaluate using proof-of-concept implementation on Universal Software Radio Peripherals (USRP) testbed, theoretical analysis, simulations. Testbed experiments show real-life feasibility over wide range different channel conditions. The analysis highlight scalability efficiency ad-hoc networks while large-scale simulations improves throughput by 30% compared state-of-the-art schemes.
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