Abstract Knowledge of nodes’ locations is an essential requirement for many applications. This paper surveys the current state of the art for localization schemes in sensor networks. We present a taxonomy of the localization schemes for sensor networks based on different features. We then describe how the current localization schemes for sensor networks map to these different features. We believe that this paper serves as 							
						
							
					 															
					Adel M. Youssef, Moustafa Youssef