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一種面向監測區域的鏈路質(zhì)量和覆蓋保證的節點(diǎn)調度算法
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(國家無(wú)線(xiàn)電監測中心成都監測站 監測業(yè)務(wù)一室,成都 610000)

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楊 瀏(1982),男,碩士研究生,工程師,主要從事通信與信息系統、計算機科學(xué)與技術(shù)方向的研究。[FQ)]

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Sensor Node Scheduling Algorithm for Monitoring Area Based on Coverage and Link Quality Guarantee
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(Monitoring Business Section I,Chengdu Monitoring Station of SRMC,Chengdu 610000,China)

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    摘要:

    為了降低監測區域能耗總開(kāi)銷(xiāo)和減少網(wǎng)絡(luò )傳輸時(shí)延,保證監測區域網(wǎng)絡(luò )鏈路質(zhì)量、實(shí)現網(wǎng)絡(luò )的全面覆蓋和延長(cháng)網(wǎng)絡(luò )生命周期,設計了一種基于掃描線(xiàn)和節點(diǎn)自適應調整蘇醒時(shí)隙的節點(diǎn)調度方案;首先,定義了系統模型即網(wǎng)絡(luò )假設和調度目標;然后判斷網(wǎng)絡(luò )是否實(shí)現當完全覆蓋,當不能全面覆蓋時(shí),通過(guò)調整部分節點(diǎn)的感知半徑來(lái)實(shí)現網(wǎng)絡(luò )的全面覆蓋;當鏈路質(zhì)量過(guò)差導致傳輸延遲過(guò)大時(shí),通過(guò)設計從源節點(diǎn)到目標節點(diǎn)的增加節點(diǎn)蘇醒時(shí)隙,并根據節點(diǎn)的剩余能量和傳輸延遲閾值來(lái)減少數據傳輸次數以降低傳輸延遲;在NS2環(huán)境下進(jìn)行實(shí)驗,結果表明:文中方法能有效地實(shí)現傳感器網(wǎng)絡(luò )監測區域的全面覆蓋,降低網(wǎng)絡(luò )的傳輸延遲和提高網(wǎng)絡(luò )的生命周期,與其他節點(diǎn)調度相比,具有很強的優(yōu)越性和實(shí)用性。

    Abstract:

    In order to reduce network energy consumption and decrease the network time delay consumption, guaranteeing the monitoring area network link quality and prolong the network life cycle, a node scheduling method based on scanning and node adaptive adjust the reviving time slot is proposed. Firstly, the network suppose and scheduling goal are defined, then the network is justified whether can realize the network converge, when the network is not coverage comprehensively, the radius of partial nodes can be adjusted to realize the network coverage. When the transporting time delay is too big, the node reviving time slot is added, and the transporting time delay can be reduced according to the rest energy of sensor nodes and transporting delay threshold. The experiment is operated in NS2 environment, the result shows:the method in this paper can realize the node scheduling in sensor monitoring area, network energy consumption and transporting delay are reduced and the network lifecycle is prolonged. Therefore, it has stronger application foresight and priority over the other node scheduling methods.

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楊瀏.一種面向監測區域的鏈路質(zhì)量和覆蓋保證的節點(diǎn)調度算法計算機測量與控制[J].,2015,23(5):1624-1627.

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  • 在線(xiàn)發(fā)布日期: 2015-07-31
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