Title :
Short Range High Speed PPP-based Underwater Acoustic Network System
Author :
Han, Jun ; Asada, Akira ; Yagita, Yasunobu
Author_Institution :
Inst. of Ind. Sci., Univ. of Tokyo, Tokyo
Abstract :
A prototype underwater acoustic network system with 100 kilo bits per second (kbps) and point-to-point protocol (PPP) implementation was developed last year using a binary phase shift keying (BPSK) modulation for a new effective seafloor geodetic observing robot network system. At that time, a serial line was used for one-way data transmission because only one set of acoustic transmitter and receiver was available from our budget. In order to realize a transmission bit rate of above 500 kbps, now not only a new set of two-way acoustic communication hardware has been developed, but also the carrier frequency has been raised to 1-3 MHz from 500 kHz used in the old system. Presently we are trying to achieve above 500 kbps high bit rate.
Keywords :
data communication; oceanographic techniques; phase shift keying; protocols; underwater acoustic communication; BPSK modulation; PPP-based underwater acoustic network system; acoustic receiver; acoustic transmitter; binary phase shift keying modulation; bit rate 100 kbit/s; carrier frequency; one-way data transmission; point-to-point protocol; seafloor geodetic observing robot network system; serial line; short range high speed acoustic network system; transmission bit rate; two-way acoustic communication; Binary phase shift keying; Bit rate; Data communication; Phase modulation; Protocols; Prototypes; Robots; Sea floor; Transmitters; Underwater acoustics;
Conference_Titel :
OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean
Conference_Location :
Kobe
Print_ISBN :
978-1-4244-2125-1
Electronic_ISBN :
978-1-4244-2126-8
DOI :
10.1109/OCEANSKOBE.2008.4531084
