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Vol. 158, Issue 11, November 2013, pp. 120-126




The Probability Detection CSMA Protocol with Monitoring Function in WSNs and Energy Efficiency Analysis
1 Yingying GUO, 1 Hongwei DING, 1 Jing NAN, 1 Yifan ZHAO, 2 Qianlin LIU

1 School of Information, Yunnan University, No. 2 Green Lake North Road, Kunming, Yunnan, 650091, China

2 People's Liberation Army of Yunnan Province Military, No. 661Beijing Road, Panlong District, Kunming, Yunnan, 650091, China

1 Tel.: +8615887221310,
E-mail: Guoyingying727@126.com


Received: 19 August 2013   /Accepted: 25 October 2013   /Published: 30 November 2013

Digital Sensors and Sensor Sysstems


Abstract: The paper presents a new WLAN (wireless local area network) MAC protocol, probability detection CSMA with monitoring for WSNs MAC protocol. Analyzes and builds the corresponding mathematical model using average cycle method, and get the mathematical expressions of systemic throughput and the life cycle of terminal nodes of the probability detection CSMA with monitoring for WSNs MAC protocol through a rigorous mathematical derivation. Simulation results show that the probability detection CSMA with monitoring for WSNs MAC protocol due to join the monitoring signal, resulting in the decrease of systemic throughput, but reduces the collision probability. Meanwhile, under the control of the protocol, the systemic throughput and utilization rate has a higher value in the light loads, then avoid the waste of channel resources. Therefore, the probability detection CSMA with monitoring for WSNs MAC protocol has a better performance in the WLAN.


Keywords: Wireless local area network, Average cycle method, Throughput, Life cycle, Monitoring signal.


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