Investigation of Wireless Communication from Under Seawater to Open Air with Xbee Pro S2B Based on IEEE 802.15.4 (Case Study: West Java Pangandaran Offshore Indonesia)

摘要

Under seawater wireless communication by using 802.15.4 protocol and 2.4 GHz frequency is used to support the topology of Underwater Wireless Sensor Network (UWSN). Some studies have been conducted to analyze underwater wireless communication at a close range which is less than 1 m. However, if the communication is conducted from under seawater to the open air, it is necessary to determine whether the change of media, that is water and air, will influence the communication. This research offers the results of wireless communication performance point to point under seawater by using ZigbeePro S2B module based on IEEE 802.15.4 protocol. The measurements were conducted in the offshore area at a distance of 1 km from the coast. The measurement of radio range test was undertaken by using XCTU version 6.3.8 application. The findings suggest that after 3 tests, the performance of ZigbeePro S2B ran optimally only at a distance of 20 cm depth. Although it had been tested to a distance of 500 cm depth, it seemed that there was a significant decrease in performance after 20 cm deep. Furthermore, at a distance of 500 cm, a total failure in data transmission occurred.