A comparative view on received signal strength (RSS) based location estimation in WSN

Location estimation is a very useful concept in the real world. The assessment of the localization system is based on the wireless technology used, positioning algorithm, complexity, scalability, accuracy, power consumption, size and cost. GPS based localization are inconvenient due to cost and poor signal coverage area. Modern localization system use techniques like AoA, ToA, TDoA & RSS. Among them RSS is an attractive approach since it provides low cost and easy implementation. This survey paper mainly focuses the estimation of received signal strength (RSS) based LBS and it's attributes like accuracy, cost etc.