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Vol. 160, Issue 12, December 2013, pp. 390-397

 

Bullet

 

Towards a Packet Radio Network Single-channel Non-collision Multiple Access Protocol Based on Priority
 
Li-Xia LIU, Xiao-Hua QIU

Dept. of Information Engineering, Engineering University of CAPF, Xi'an, 710086, China
E-mail: wjllx939@tom.com

 

Received: 17 September 2013   /Accepted: 22 November 2013   /Published: 30 December 2013

Digital Sensors and Sensor Sysstems

 

Abstract: Multiple Access (MAC) protocol is a key issue in multiple packet radio network self-organization design. To address problems of hidden collision, adjacent collision and inability to effectively access with priority of multiple access protocol caused by multiple-hop, the paper brought out a novel Non-collision Multiple Access (NCMA) protocol that can effectively support access with priority. It also uses RTS/CTS dialog to arrange capture effect with CTS by deterministic slot, but no longer exist collision between RTS and RTS, RTS and CTS, CTS and CTS. The proposed protocol avoids problems of existing protocols that wasting channel resource for RTS/CTS collision in case of light load as well as throughput performance decrease as traditional CSMA under heavy load, thus significantly improving network resource utilization. Analysis result shows that NCMA can break limitation that existing multi-hop packet radio network cannot effectively networking and support priority.

 

Keywords: Packet radio network, Non-collision, Multiple access, Priority.

 

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