An Enhanced DESYNC Scheme for Simple TDMA Systems in Single-Hop Wireless Ad-Hoc Networks


KIPS Transactions on Computer and Communication Systems, Vol. 3, No. 9, pp. 293-300, Sep. 2014
10.3745/KTCCS.2014.3.9.293,   PDF Download:

Abstract

TDMA(Time Division Multiple Access) is a channel access scheme for shared medium networks. The shared frequency is divided into multiple time slots, some of which are assigned to a user for communication. Techniques for TDMA can be categorized into two classes: synchronous and asynchronous. Synchronization is not suitable for small scale networks because it is complicated and requires additional equipments. In contrast, in DESYNC, a biologically-inspired algorithm, the synchronization can be easily achieved without a global clock or other infrastructure overhead. However, DESYNC spends a great deal of time to complete synchronization and does not guarantee the maximum time to synch completion. In this paper, we propose a lightweight synchronization scheme, C-DESYNC, which counts the number of participating nodes with (Global Packet) signal including the information about the starting time of a period. The proposed algorithm is mush simpler than the existing synchronization TDMA techniques in terms of cost-effective method and guarantees the maximum time to synch completion. Our simulation results show that C-DESYNC guarantees the completion of the synchronization process within only 3 periods regardless of the number of nodes.


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Cite this article
[IEEE Style]
S. H. Hyun, J. Y. Lee and D. M. Yang, "An Enhanced DESYNC Scheme for Simple TDMA Systems in Single-Hop Wireless Ad-Hoc Networks," KIPS Transactions on Computer and Communication Systems, vol. 3, no. 9, pp. 293-300, 2014. DOI: 10.3745/KTCCS.2014.3.9.293.

[ACM Style]
Sang Hyun Hyun, Je Yul Lee, and Dong Min Yang. 2014. An Enhanced DESYNC Scheme for Simple TDMA Systems in Single-Hop Wireless Ad-Hoc Networks. KIPS Transactions on Computer and Communication Systems, 3, 9, (2014), 293-300. DOI: 10.3745/KTCCS.2014.3.9.293.