Physical Antenna Diversity and Fixed-Slot Scheduling for Robust Narrowband Wireless Communication in Free Spectrum

Authors: Anand Kumar Singh, Omkar Wagle

DOI: https://doi.org/10.5281/zenodo.14980841

Short DOI: https://doi.org/g868rh

Country: India

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Abstract: The Antenna diversity is a critical technique for enhancing the reliability of narrowband wireless communication in the free spectrum, particularly in multi-node and multi-hop mesh networks. This study explores the effectiveness of physical antenna diversity combined with software-based mechanisms for antenna selection in mitigating challenges such as multipath fading, interference, and limited bandwidth. The focus is on leveraging historical Received Signal Strength Indicator (RSSI) data to optimize antenna selection for transmission (TX) and reception (RX) in fixed-slot scheduling. The implementation of these strategies in multi-node mesh networks is discussed, considering hardware requirements, software architecture, and power management. The impact of antenna diversity on reliability was demonstrated through improved signal quality, reduced packet loss, and scalability. Case studies on IoT mesh networks, industrial automation, and environmental monitoring have highlighted the practical applications of these techniques. Challenges and future directions, such as integration with legacy systems, adaptation to dynamic environments, and the potential for advanced techniques, such as machine learning and Massive MIMO, are also addressed. This study concludes that physical antenna diversity coupled with RSSI-based selection mechanisms and fixed-slot scheduling offers a robust solution for efficient and dependable communication in diverse narrowband wireless applications.

Keywords: Antenna Diversity, Narrowband Wireless Communication, RSSI-Based Antenna Selection, Multi-Hop Mesh Networks, Fixed-Slot

Paper Id: 232221

Published On: 2019-03-11

Published In: Volume 7, Issue 2, March-April 2019

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