Sensor networks rely on an efficient power supply to deliver core functionality. However, it is sometimes difficult to guarantee a reliable source of power supply. Power interruption is often a challenge that affects service delivery. Also, the majority of modern sensor networks rely on optimized power sources, which is difficult to attain [8].
Another important challenge in sensor data computing is related with the ability to handle real-time operations. Critical operations such as those in the military and the health sector require the use of real-time data. Many constraints hinder the delivery and processing of real-time data. Some wireless sensor networks do not have the capacity to handle real-time execution, which culminates in disruption of service delivery and quality assurance [8].