一種面向空間信息網(wǎng)的SCPS-NP QoS單播路由機(jī)制
發(fā)布時間:2018-06-13 05:19
本文選題:空間信息網(wǎng) + SCPS-NP; 參考:《小型微型計(jì)算機(jī)系統(tǒng)》2017年07期
【摘要】:為滿足空間通信的要求,空間數(shù)據(jù)系統(tǒng)咨詢委員會制定了空間通信協(xié)議規(guī)范.在SCPS-NP協(xié)議的基礎(chǔ)上,利用最短路徑算法,設(shè)計(jì)一種點(diǎn)到點(diǎn)QoS單播路由機(jī)制.為適應(yīng)衛(wèi)星網(wǎng)絡(luò)動態(tài)變化的特點(diǎn),采用時隙劃分的方式對空間信息網(wǎng)進(jìn)行分析,建立了相應(yīng)的節(jié)點(diǎn)模型和拓?fù)淠P?利用本文設(shè)計(jì)的路由機(jī)制,綜合考慮QoS滿意度和服務(wù)定價滿意度,在空間信息網(wǎng)中找到滿足QoS的路徑.將所設(shè)計(jì)的QoS路由機(jī)制在NS2平臺進(jìn)行仿真實(shí)現(xiàn)并對路由機(jī)制進(jìn)行了性能評價.實(shí)驗(yàn)結(jié)果表明,設(shè)計(jì)的機(jī)制是可行和有效的,比基準(zhǔn)機(jī)制性能更優(yōu).
[Abstract]:In order to meet the requirements of space communication, the Advisory Committee of Spatial data Systems has formulated the specification of space communication protocol. Based on SCPS-NP protocol, a point-to-point QoS unicast routing mechanism is designed by using the shortest path algorithm. In order to adapt to the dynamic change of satellite network, the spatial information network is analyzed by slot division, and the corresponding node model and topological model are established. Using the routing mechanism designed in this paper, the QoS satisfaction and the service pricing satisfaction are considered synthetically, and the path to satisfy QoS is found in the spatial information network. The designed QoS routing mechanism is simulated on NS2 platform and the performance of the routing mechanism is evaluated. The experimental results show that the designed mechanism is feasible and effective, and the performance of the proposed mechanism is better than that of the benchmark mechanism.
【作者單位】: 東北大學(xué)信息技術(shù)研究院;東北大學(xué)計(jì)算機(jī)科學(xué)與工程學(xué)院;東北大學(xué)信息科學(xué)與工程學(xué)院;
【基金】:國家杰出青年科學(xué)基金項(xiàng)目(61225012,71325002)資助 國家自然科學(xué)基金項(xiàng)目(61572123)資助 遼寧省百千萬人才工程項(xiàng)目(2013921068)資助
【分類號】:TN927
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本文編號:2012869
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