本文選題：IPv低功耗無線個域網(wǎng) + Mesh-under��； 參考：《系統(tǒng)工程與電子技術(shù)》2017年07期

【摘要】：在基于Mesh-under的IPv6低功耗無線個域網(wǎng)(IPv6over low-power wireless personal area networks,6LoWPAN)中,針對傳輸路徑上中間節(jié)點重傳緩存溢出導(dǎo)致重傳數(shù)據(jù)分片丟失,造成網(wǎng)絡(luò)性能下降等問題,提出一種基于Mesh-under的備用緩存機制。本文所提機制根據(jù)傳輸路徑上各節(jié)點重傳緩存使用情況及數(shù)據(jù)分片剩余跳數(shù)等信息,設(shè)置動態(tài)重傳緩存門限,并為超過該門限的節(jié)點從其鄰居節(jié)點中挑選合適的備用緩存節(jié)點,從而完成數(shù)據(jù)分片的緩存與重傳過程,達到均衡使用各節(jié)點重傳緩存的目的。結(jié)果表明,所提機制能夠有效避免重傳緩存溢出,減小網(wǎng)絡(luò)能耗,同時進一步提高目的端重組成功率。
[Abstract]:In IPv6 low power low-power wireless personal area networks 6LoWPAN based on Mesh-under, a backup buffer mechanism based on Mesh-under is proposed to solve the problems of retransmission data fragmentation loss caused by intermediate node buffer overflow on transmission path and network performance degradation. The mechanism proposed in this paper sets the dynamic retransmission buffer threshold according to the retransmission cache usage of each node on the transmission path and the number of remaining hops of the data fragments, and selects the appropriate standby buffer node from the neighbor node for the node exceeding the threshold. Thus, the process of data partition cache and retransmission is completed, and the retransmission cache of each node is used equitably. The results show that the proposed mechanism can effectively avoid retransmission buffer overflow, reduce network energy consumption, and further improve the success rate of target end reorganization.
【作者單位】： 重慶郵電大學(xué)光通信與網(wǎng)絡(luò)重點實驗室;
【基金】：國家自然科學(xué)基金(61271261,61371097) 重慶市青年科技人才培養(yǎng)計劃(CSTC2014KJRC-QNRC40001) 重慶郵電大學(xué)青年自然科學(xué)基金(A201293)資助課題
【分類號】：TN92
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本文編號：2088309