Space-Time- and Frequency- Spreading for Interference Minimization in Dense IoT

In this article, we propose a space spreading-assisted framework that leverages either {time or frequency diversity both to reduce interference and signal loss} owing channel impairments facilitate the efficient operation of large-scale dense Internet-of-Things (IoT). Our approach employs dispersion data-streams transmitted from individual IoT devices over indexed space-time (ST), space-frequency (SF) space-time-frequency (STF) blocks. As result, no two transmit on same block; only one is activated while rest in network silent, thereby minimizing possibility side. On receive side, multiple-antenna array ameliorates performance presence exploiting array-processing gain. due superposition multiple killed at its root, extra energy wasted fighting other impairments, enabling energy-efficient transmission access (MAC). To validate proposed concept, simulate against networks deployed generalized indoor outdoor scenarios terms probability outage. Results demonstrate our conceptualized benefits interference-free as well enhancement overall system performance.