Multipath effect of MIMO-enabled device in constrained environments
DOI:
https://doi.org/10.63746/njtd.v23i1.4513Keywords:
MIMO, unlicensed wireless frequency, QoS, Gbps transmission, home multimedia networks, NLOSAbstract
The demand for wireless throughput has increased immensely, and high data rate wireless communications is of significance in emerging wireless local area networks (WLANs) and home multimedia networks. Massive data consumption being aided by emerging technologies is helping the demand for wireless throughput to experience exponential growth. Massive data consumption results from high-definition video streaming, automatic software updates, cloud backups, social media autoplay, and background app syncing. Wireless transmission in constrained environments such as a highly obstructed and large network environment is crucial. Thus, designing a very high-speed wireless link that offers good quality-of-service (QoS), the QoS metric such as delay, throughput, latency, packet dropped and jitter, and range capability in NLOS (Non-Line-of-Sight) environments constitutes a significant technical challenge. MIMO (Multiple-Input Multiple-Output) enhances Non-Line-of-Sight (NLOS) communication by using multipath propagation to improve signal reliability, range, and throughput. MIMO-based systems effectively manage the interference and signal attenuation common in NLOS environments, enabling robust communications where single-antenna systems fail. It increases signal reliability through diversity, and boosts data throughput via spatial multiplexing. The coverage is extended by combining reflected signals. MIMO uses reflections off buildings and other objects to create multiple paths, and allows the receiver to reconstruct a stronger signal. Transmitting multiple copies of data across various antennas, MIMO increases signal reliability and mitigates signal drops in constrained environments. The study investigates the effect(s) of multipath propagation on QoS in a MIMO system, using unlicensed spectrum. Research findings indicated that MIMO-enabled device, using multipath effect in the line of transmission, is the best wireless transmission option for a highly obstructed and large network environment as it provides better throughput, high data rate, reliable delivery of data, low delay, wider coverage and easier mobility of users.
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