TY - GEN
T1 - Design of underwater acoustic modems through high performance DSPs
AU - Xu, Lijun
AU - Yan, Shefeng
PY - 2014/11/12
Y1 - 2014/11/12
N2 - In this paper, we present an acoustic modem hardware design through the use of a low power, high performance digital signal processor (DSP). The modem uses either MFSK or MPSK modulation methods for data transmission. The floating-point DSP, TMS320C6478, is used to transmit the modulated signal, perform demodulation, and support the network protocol. Several algorithms including Doppler shift correction, adaptive equalizer, and TURBO decoder are fully implemented in the DSP. A low-power, high performance Xilinx FPGA, XC6SLX45, is also used to handle the peripherals. When in the low power mode for the MFSK scheme, the acoustic modem has a power consumption of 0.8 watt. When performing the MPSK scheme, the total power consumption of the modem is 1.5 watt. The designed modems are currently used in our underwater acoustic network.
AB - In this paper, we present an acoustic modem hardware design through the use of a low power, high performance digital signal processor (DSP). The modem uses either MFSK or MPSK modulation methods for data transmission. The floating-point DSP, TMS320C6478, is used to transmit the modulated signal, perform demodulation, and support the network protocol. Several algorithms including Doppler shift correction, adaptive equalizer, and TURBO decoder are fully implemented in the DSP. A low-power, high performance Xilinx FPGA, XC6SLX45, is also used to handle the peripherals. When in the low power mode for the MFSK scheme, the acoustic modem has a power consumption of 0.8 watt. When performing the MPSK scheme, the total power consumption of the modem is 1.5 watt. The designed modems are currently used in our underwater acoustic network.
KW - Low power
KW - Platform
KW - Power dissipation
KW - TMS320C6748
UR - http://www.scopus.com/inward/record.url?scp=84920282729&partnerID=8YFLogxK
U2 - 10.1145/2671490.2674598
DO - 10.1145/2671490.2674598
M3 - Conference contribution
AN - SCOPUS:84920282729
T3 - Proceedings of the 9th ACM International Conference on Underwater Networks and Systems, WUWNET 2014
BT - Proceedings of the 9th ACM International Conference on Underwater Networks and Systems, WUWNET 2014
PB - Association for Computing Machinery
T2 - 9th ACM International Conference on Underwater Networks and Systems, WUWNet 2014
Y2 - 12 November 2014 through 14 November 2014
ER -