RFID (Radio-Frequency Identification) is the most suitable technology for tracking numerous items over short distances in a warehouse. It allows for quick and efficient item identification and tracking without the need for direct line of sight, making it ideal for inventory management.

Installing a WiFi mesh system is the most effective solution to reduce call dropouts in a specific room. A mesh system extends WiFi coverage throughout the home, ensuring stable and reliable connectivity even in areas that were previously problematic.

NFC is the most suitable technology for the restaurant’s new payment system. It enables secure, contactless transactions at close range, allowing customers to pay at their tables quickly and safely.

Bluetooth Low Energy (BLE) is the most suitable technology for a smart home system, as it’s designed for low power consumption and provides reliable connectivity across various IoT devices. BLE ensures that the devices can communicate effectively without draining their batteries quickly.

For long-range fixed wireless solutions, especially in rural areas, it’s crucial to comply with regulatory requirements related to wireless power to ensure safe and legal operation. Regulations dictate the maximum power output and frequencies that can be used, which are critical for preventing interference with other services and ensuring public safety.

802.11ac, also known as WiFi 5, with Multi-User Multiple Input Multiple Output (MU-MIMO) technology allows multiple devices to receive data simultaneously, improving the efficiency and capacity of the network in high-density areas.

IEEE 802.11ax, also known as WiFi 6, offers significant improvements in throughput, capacity, and efficiency over its predecessors, making it ideal for environments with a high density of devices and demanding network requirements.

The 5GHz frequency band is less congested compared to the 2.4GHz band and has more non-overlapping channels, making it more resistant to interference from other wireless networks in densely populated areas.

NFC technology is ideal for secure and fast contactless payments. It allows for quick and secure transmission of payment information between a mobile device and a payment terminal, enhancing the customer experience and streamlining business operations.

The 2.4GHz frequency band is more prone to interference from various household devices like microwaves, cordless phones, and Bluetooth devices, leading to slow and intermittent connectivity. Switching to the 5GHz band, which is less congested and has more channels, can alleviate these issues.