[IEEE 2012 IEEE 14th Int'l Conf. on High Performance Computing and Communication (HPCC) & 2012 IEEE 9th Int'l Conf. on Embedded Software and Systems (ICESS) - Liverpool, United Kingdom (2012.06.25-2012.06.27)] 2012 IEEE 14th International Conference on High Performance Computing and Communication & 2012 IEEE 9th International Conference on Embedded Software and Systems - Survey of Extended LEACH-Based Clustering Routing Protocols for Wireless Sensor Networks