... 10, pp. 148 2– 149 3, 1991.[6] J. Elson, L. Girod, and D. Estrin, “Fine-grained network timesynchronization using reference broadcasts,” in Proceedings ofthe 5th Symposium on Operating Systems ... Communications,vol.23,no.5,pp.1085–1099, 2005. [15] K L. Noh and E. Serpedin, “Pairwise broadcast clock synchro-nization for wireless sensor networks,” in Proceedings of the IEEE International Symposium on a World of Wireless, Mobileand ... L1shouldbechosenuntilallthenodesinL1are synchronized. How-ever, in this example, there are no remaining unsynchronizednodes in L1after p1 ,4 since all the nodes in L1are already syn-chronized by p1 ,4 (i.e.,...