Title :
Conflict-free MAC protocol for regional underwater observation networks
Author :
Jiarong Zhang ; Gang Qiao ; Biao Kuang ; Can Wang
Author_Institution :
Harbin Eng. Univ., Harbin, China
Abstract :
This paper designed a conflict-free Media Access Control (MAC) protocol for the regional underwater observation networks, which avoids channel contentions by using the top-down channel assignment. In this scheme, temporary channel access is assigned by the gateway or Autonomous Underwater Vehicle (AUV) using a require-data-send signal (RDS). RDS is used to wake up the specific node and can not be heard by the other nodes. We designed two types of acknowledgement (ACK) signal to shorten the poll duration and save energy. If data received correctly, ACK1 will be sent to sleep the transmitting node and wake up the next node to transmit data. Otherwise, ACK2 will be sent to require the error data to be retransmitted. Theoretical analysis and simulation results show that this protocol provides a better performance than ALOHA and CSMA protocols. Finally, we conducted a Lake Trails to validate the practicability of this protocol.
Keywords :
access protocols; channel allocation; telecommunication network topology; underwater acoustic communication; wireless sensor networks; ALOHA; AUV; CSMA; MAC protocol; acknowledgement signal; autonomous underwater vehicle; channel assignment; media access control protocol; require-data-send signal; transmitting node; underwater observation networks; Conflict-Free Protocol; Regional Underwater Observation Networks; Sensor Network; Top-Down Channel Assignment;
Conference_Titel :
Information and Communications Technology 2013, National Doctoral Academic Forum on
Conference_Location :
Beijing
Electronic_ISBN :
978-1-84919-819-6
DOI :
10.1049/ic.2013.0211