Low power wide area network (LPWAN) is a wireless communication technology that offers large coverage, low data rates, and consumption, making it suitable choice for the growing Internet of Things machine-to-machine applications. Long range (LoRa), an LPWAN technology, has recently been used in industrial, scientific medical (ISM) band various low-power The coverage rate supported by these devi...

A low complexity dynamic subcarrier and power allocation methodology for downlink communication in an OFDM-based multiuser environment is developed. The problem of maximizing overall capacity with constraints on total power consumption, bit error rate and data rate proportionality among users requiring different QOS specifications is formulated. Assuming perfect knowledge of the instantaneo...