Peng Guo Tao Jiang Guangxi Zhu Hsiao-Hwa Chen Utilizing acoustic propagation delay to design MAC protocols for underwater wireless sensor networks. 1035-1044 2008 8 Wireless Communications and Mobile Computing 8 http://dx.doi.org/10.1002/wcm.659 db/journals/wicomm/wicomm8.html#GuoJZC08