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Vol. 154, Issue 7, July 2013, pp. 15-23

 

Bullet

 

A MAC Protocol for Chain-type Wireless Sensor Network Based on the Token
 
1 Lingling Wang, 1 Xijun Yan, 2 Yan Yan

1, 2 College of Computer and Information Engineering, Hohai University, Focheng West Road of Jiangning, Nanjing 211100, China

 1 Tel.: +86-013705165897, fax: +86-025-58099120
E-mail: yan_xijun@hhu.edu.cn

 

Received: 28 April 2013   /Accepted: 19 July 2013   /Published: 31 July 2013

Digital Sensors and Sensor Sysstems

 

Abstract: Currently, chain-type wireless sensor network (WSN) is widely used in many fields such as bridge structure and gas pipeline monitoring. To reduce the channel conflict and energy consumption of the network, a novel Media Access Control (MAC) protocol for chain-type WSN based on token is proposed. It takes the token in the beacon frame to control adjacent sensor nodes for communication. Message equipped mechanism is used to embed synchronization information into the routing protocol, which can realize coarse-grained time synchronization. To improve reliability, this paper proposes a novel transmission mechanism by sending redundant data packets through a single path. Experimental results show that the new protocol can improve stability and reliability in transmission, prolong life cycle and meet the application requirements of chain-type WSN.

 

Keywords: Chain-type wireless sensor network, Token, MAC protocol, Time synchronization, Low power consumption.

 

 

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