Recently, Internet of Thing (IoT) appears to be a new paradigm foreverything to be connected seamlessly to the Internet. One of the standards used to fitthe low power devices into IoT is IEEE 802.15.4 wireless sensor network (WSN). Tosupport IPv6 packet transmission over the IEEE 802.15.4 networks, the IPv6 overLow power Wireless Personal Area Network (6LoWPAN) adaptation layer isnecessary. The 6LoWPAN adaptation layer divides the packet into a number offragments before it is transmitted. At the receiver, these fragments will be reassembledto become the original packet. However, the existing reassembly process in theadaptation layer fails to consider the irregular arrival sequence of fragments which cancause the packet that has been reassembled to be corrupted. This serious impedimentin reassembly mechanism can cause unacceptable packet lost. In this paper, a newreassembly mechanism namely Multi-Reassemblies Buffer Management System (MRBMS)is proposed in the context of providing efficient 6LoWPAN packetsreassembly. In this proposed mechanism multiple reassembly buffers are createddynamically such that multiple reassembly sessions can be processed simultaneously.Each reassembly session is responsible for a packet reconstruction. The performanceof proposed MR-BMS is compared with RFC 4944-based reassembly mechanism andSICSlowPAN implementation. Results show that the proposed mechanismoutperforms RFC 4944-based reassembly mechanism and SICSlowPANimplementation with 121.7% and 16.2% higher packet delivery ratio respectivelywhen packet encountered more fragmentation. Moreover, the proposed MR-BMS hasa comparable average energy consumption with other mechanisms.
New Reassembly Buffer Management System in 6LoWPAN
23.12.2013
Proceedings of the Asia-Pacific Advanced Network; Vol 36 (2013): Proceedings of the 36th meeting of the Asia-Pacific Advanced Network; 57-64 ; 2227-3026 ; 10.7125/APAN.36
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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