Abstract - The implementation of micro-irrigation in urban gardens is being more popular over the years. But, after the initial installation of such micro-irrigation systems, it makes some inconveniences and discomforts in order to control it manually. Considering all the aspects of the issue, deployment of wireless sensor and activator network (WSAN) can be the most optimal and comprehensive solution. Nonetheless, employment of wireless sensor and activator networks in urban irrigation sector poses different difficult tasks, such as longer battery life, sufficiently long range capability, compact size volume and low cost simultaneously. In the recent past, several different technologies have been used to solve those challenging tasks.