O-MAC: an optimized MAC protocol for concurrent data transmission in real-time wireless sensor networks

In this paper, we propose a new TDMA-based MAC protocol which aims at maximizing data transmission parallelism with two channels. The proposed protocol includes two key schemes, a channel allocation scheme and a slot allocation scheme. Each node determines a sending channel and a receiving channel b...

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Bibliographic Details
Published inWireless networks Vol. 21; no. 6; pp. 1847 - 1861
Main Authors Van Vinh, Phan, Oh, Hoon
Format Journal Article
LanguageEnglish
Published New York Springer US 01.08.2015
Springer Nature B.V
Subjects
Allocations
Analysis
Channels
Communication
Communications Engineering
Computer Communication Networks
Data transmission
Electrical Engineering
Energy
Engineering
IT in Business
Monitoring
Network management systems
Networks
Protocol
Real time
Receiving
Scheduling
Sensors
Slot allocation
Studies
Wireless networks
Slot scheduling
Sensor networks
Monitoring and control
Bidirectional communication
Real-time
Slot reuse
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Summary:In this paper, we propose a new TDMA-based MAC protocol which aims at maximizing data transmission parallelism with two channels. The proposed protocol includes two key schemes, a channel allocation scheme and a slot allocation scheme. Each node determines a sending channel and a receiving channel by using the channel allocation scheme and a sending slot and a receiving slot by using the slot allocation scheme. The crux of these schemes lies in that they are performed in a distributed manner such that any two nodes two-hop away vertically are assigned different channels and same slot, and any two nodes four-hop away vertically are assigned the same channel and slot. The protocol structure consists of control transmission period for sending control messages to some specified nodes and data transmission period for periodic data acquisition from all nodes, thus allowing bidirectional communication for industry monitoring and control networks. According to the performance evaluation, the proposed protocol improved data throughput greatly and thus shortened data acquisition time significantly. In consequence, we expect that our protocol will satisfy the tighter time constraints for various real-time applications.
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ISSN:1022-0038
1572-8196
DOI:10.1007/s11276-015-0887-2