Browsing by Author "Wong, Yung-Chang"

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Hybrid address configuration for tree-based wireless sensor networks
(2008-06-01)
Wong, Yung-Chang
;
Wang, Jui-Tang
;
Chang, Nai-Hsin
;
Liu, Ho-Han
;
Tseng, Chien-Chao
This letter proposes a new scheme to alleviate the issue on address acquisition failure in wireless sensor networks (WSNs). The basic idea is to use a hierarchical address structure to make the proposed scheme less susceptible to physical distribution of WSN devices. Simulation results show that the new scheme significantly reduces the failure probability.
Proactive DAD: A fast address-acquisition strategy for mobile IPv6 networks
(2006-11-01)
Tseng, Chien-Chao
;
Wong, Yung-Chang
;
Yen, Li-Hsing
;
Hsu, Kai-Cheng
;
資訊工程學系
The increasing number of Wi-Fi-compatible mobile devices highlights various wireless access challenges, including the need for smooth hand offs between Internet attachment points in mobile IPv6 networks. To confirm address uniqueness in a new domain, mobile nodes must run duplicate address detection (DAD), which is a time-consuming process. The Proactive DAD approach uses topology information and layer-2 signals to predict the new network domains prior to or in parallel with layer-3 hand offs. Experimental results show that P-DAD can significantly reduce both hand-off latency and packet loss.