Reliable Wireless Networking via Soft-Source Information Combining

This article puts forth a multistream networking paradigm, referred to as soft-source-information-combining (SSIC), support wireless Internet of Things (IoT) applications with ultrareliability requirements. For SSIC networking, an dispatcher at the source dispatches duplicates packets over multiple streams, which may be established different physical networks. If packet on stream cannot decoded due interference or noise, decoder makes available packet’s soft information. An aggregator then combines information boost reliability. Of importance are two challenges: 1) how descramble scrambled from streams enable correct and 2) construct dispatching aggregation framework compatible commercial network interface cards (NICs) TCP/IP To address challenges, we put forth: descrambling (SD) method minimize bit-error rate (BER) packet-error (PER) SSIC’s output architecture readily deployable today’s networks without specialized NICs. concept proving experimentation, realized system Wi-Fi’s paths in such way that all legacy can enjoy reliability brought by modification. Experiments our testbed corroborate effectiveness lowering delivery failure possibility providing 99.99% reliable for short-range communication.