惡意節(jié)點(diǎn)容忍的間斷連接無線網(wǎng)絡(luò)消息轉(zhuǎn)發(fā)策略
doi: 10.11999/JEIT141198
基金項(xiàng)目:
重慶市自然科學(xué)重點(diǎn)基金(CSTC2013JJB40001, CSTC2013JJB40006)，重慶市自然科學(xué)基金(CSTC2011JJA40043, CSTC2014JCYJA40039)，重慶市教委項(xiàng)目(KJ1400402)，重慶郵電大學(xué)青年自然科學(xué)基金(A2012-93)，和重慶市青年科技人才培養(yǎng)計劃(CSTC2014KJRC-QNRC40001)
Malicious Node Tolerant Packet Forwarding Mechanism for Intermittently Connected Wireless Network
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摘要: 間斷連接無線網(wǎng)絡(luò)中的節(jié)點(diǎn)以協(xié)作方式完成消息投遞，惡意節(jié)點(diǎn)將嚴(yán)重影響網(wǎng)絡(luò)性能。利用節(jié)點(diǎn)歷史行為信息，該文提出一種惡意節(jié)點(diǎn)容忍的消息轉(zhuǎn)發(fā)策略，節(jié)點(diǎn)結(jié)合直接觀察信息與鄰居節(jié)點(diǎn)的推薦信息，通過動態(tài)推薦聲譽(yù)閾值感知節(jié)點(diǎn)惡意行為，進(jìn)而利用證據(jù)理論量化節(jié)點(diǎn)信任度，從而檢測網(wǎng)絡(luò)中串謀及獨(dú)立的惡意節(jié)點(diǎn)，為消息選擇最優(yōu)的轉(zhuǎn)發(fā)節(jié)點(diǎn)。結(jié)果表明，在帶有串謀的惡意攻擊下，所提出的消息轉(zhuǎn)發(fā)策略能準(zhǔn)確檢測出惡意節(jié)點(diǎn)，并顯著提高消息投遞率，改善平均時延。
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關(guān)鍵詞:
- 間斷連接無線網(wǎng)絡(luò) /
- 惡意節(jié)點(diǎn) /
- 推薦信息 /
- 聲譽(yù)值
Abstract: Packets in ICWN (Intermittently Connected Wireless Network) are delivered in a cooperation manner between nodes, which means the existence of malicious nodes will degrade the network performance. A malicious node tolerant message forwarding mechanism is proposed in this paper. By exploiting the historical node behavior information, directly observed information is combined with the recommendation information from neighbor nodes to perceive malicious node behavior according to the dynamical reputation threshold. Consequently, evidence theory is utilized to quantify the node relation to detect malicious nodes, and then the optimal relay nodes selecting can be achieved. Results show that, under the attack of collaborating malicious nodes, malicious nodes can be accurately identified by the proposed mechanism, which leads to the notably improving packet delivery ratio and average delay. -
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