Protocol Sequences for Asynchronous Multiple Access with Physical-Layer Network Coding
IEEE Wireless Communications Letters(2019)
摘要
This paper proposes a new feedback-free solution that can put collisions to good use for decoding among asynchronous transmitters. Our key idea is to jointly exploit physical-layer network coding (PNC) that allows a receiver to extract the bitwise XOR information out of time-overlapping signals, and a protocol-sequence-based scheme that allows each transmitter to deterministically determine which and when source packets contribute to the transmitted signal. In the application of group-based event detection, our design enables all source packets from asynchronous transmitters to be decoded within a quite short time duration. Simulation results show that our design, with low energy consumption, outperforms both conventional and state-of-the-art schemes in terms of the worst-case detecting delay.
更多查看译文
关键词
Receivers,Protocols,Decoding,Silicon,Optical transmitters,Network coding
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络