CDMA Based MAC Protocol for Underwater Sensor Networks

doi:10.13190/j.jbupt.2015.s1.024

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2015, Vol. 38 ›› Issue (s1): 107-110.doi: 10.13190/j.jbupt.2015.s1.024

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CDMA Based MAC Protocol for Underwater Sensor Networks

BAI Lei¹, FENG Zhen-xing², TIAN Li-qin¹

1. College of Computer Science, North China Institute of Science and Technology, Beijing 101601, China;
2. College of Computer Science, Qinghai Normal University, Xining 810008, China

Received:2014-08-24 Online:2015-06-28 Published:2015-06-28

Abstract

Abstract:

According to the characteristics that the sensor nodes in underwater sensor network (UWSN) adopt acoustic communication, characterized by high error rate high delay, low bandwidth, multipath and Doppler shift, etc., the current communication protocols designed for radio channels are unsuitable for underwater. So, a new dynamic and distribute code division multiple access (CDMA)-based media access control (MAC) protocol for UWSN was proposed. The protocol not only can save the limited energy of mobile nodes,but also increase the CDMA code reusability. The protocol can be adapted to the dynamic topology of UWSN. At the same time, the design of power control can minimize the near-far effect inherit in CDMA. Simulation indicates that, compared with the static code assignment protocol and ALOHA, the performance of the protocol mentioned above is satisfied on delivery ratio and end-to-end delay.

Key words: underwater sensor network, media access control, code division multiple access

CLC Number:

TP393

BAI Lei, FENG Zhen-xing, TIAN Li-qin. CDMA Based MAC Protocol for Underwater Sensor Networks[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2015, 38(s1): 107-110.

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CDMA Based MAC Protocol for Underwater Sensor Networks

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