Group Node Contention Algorithm for Avoiding Continuous Collisions in LR-WPAN 


Vol. 33,  No. 12, pp. 1066-1074, Dec.  2008


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  Abstract

In this paper, we proposed an efficient algorithm using pulse signal based on group-node-contention in LR-WPAN. The purpose of IEEE 802.15.4 is low speed, low cost and low power consumption. Recently, as applications of LR-WPAN have been extended, there is a strong probability of collision as well and almost collision occurs because of hidden node problem. Moreover, if the collision continuously occurs due to hidden node collision, network performance could be decreased. Nowadays, although several papers focus on the hidden node collision, algorithms waste the channel resource if continuous collisions frequently occur. In this paper, we assume that PAN has been already formed groups, and by using pulse signal, coordinator allocates channel and orders, and then, nodes in the allocated group can compete each other. Hence, contention nodes are reduced significantly, channel wastage caused by collision is decreased, and data transmission rate is improving. Finally, this algorithm can protect the network from disruption caused by frequent collisions. Simulation shows that this algorithm can improve the performance.

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  Cite this article

[IEEE Style]

J. Lee and S. Yoo, "Group Node Contention Algorithm for Avoiding Continuous Collisions in LR-WPAN," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 12, pp. 1066-1074, 2008. DOI: .

[ACM Style]

Ju-Hyun Lee and Sang-Jo Yoo. 2008. Group Node Contention Algorithm for Avoiding Continuous Collisions in LR-WPAN. The Journal of Korean Institute of Communications and Information Sciences, 33, 12, (2008), 1066-1074. DOI: .

[KICS Style]

Ju-Hyun Lee and Sang-Jo Yoo, "Group Node Contention Algorithm for Avoiding Continuous Collisions in LR-WPAN," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 12, pp. 1066-1074, 12. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880