LAUSR

This paper presents the concept of a novel chaotic pulse position coded protocol data unit (CPPCP) for secure networking with very thin energy budgets. The core idea of CPPCP is to encode a protocol data unit (PDU) with a wideband pulse train with chaotically-varied inter-pulse intervals. The architecture ensures communication security by introducing randomness between data symbols, noise-like frequency spectrum, and significant energy savings by using a smaller number of pulse transmissions compared to existing secure coding schemes such as Bluetooth Low Energy (BLE). Compared with the traditional key-based cryptographic techniques, CPPCP suppresses decipherable information by eliminating symbol periodicity. The mechanism can also be piggy-backed on traditional cryptography solutions to achieve higher levels of security. The paper presents a detailed analysis of the CPPCP implementation in the presence of pulse shape and position fluctuations caused by hardware and channel variabilities. It also presents a detailed analysis of CPPCP’s abilities to detect errors without a traditional link layer. Finally, the paper reports a prototype sensor platform and a wideband pulse transmission channel simulator for demonstrating the efficacy of CPPCP in terms of energy-savings, communication security, and increased data transmission rates.