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延遲容忍網(wǎng)絡(luò)中能量有效的接觸探測(cè)研究

周歡 任東 徐守志 蔣廷耀 黃志勇

周歡, 任東, 徐守志, 蔣廷耀, 黃志勇. 延遲容忍網(wǎng)絡(luò)中能量有效的接觸探測(cè)研究[J]. 電子與信息學(xué)報(bào), 2015, 37(6): 1285-1290. doi: 10.11999/JEIT140995
引用本文: 周歡, 任東, 徐守志, 蔣廷耀, 黃志勇. 延遲容忍網(wǎng)絡(luò)中能量有效的接觸探測(cè)研究[J]. 電子與信息學(xué)報(bào), 2015, 37(6): 1285-1290. doi: 10.11999/JEIT140995
Zhou Huan, Ren Dong, Xu Shou-zhi, Jiang Ting-yao, Huang Zhi-yong. Research on Energy-efficient Contact Probing in Delay Tolerant Networks[J]. Journal of Electronics & Information Technology, 2015, 37(6): 1285-1290. doi: 10.11999/JEIT140995
Citation: Zhou Huan, Ren Dong, Xu Shou-zhi, Jiang Ting-yao, Huang Zhi-yong. Research on Energy-efficient Contact Probing in Delay Tolerant Networks[J]. Journal of Electronics & Information Technology, 2015, 37(6): 1285-1290. doi: 10.11999/JEIT140995

延遲容忍網(wǎng)絡(luò)中能量有效的接觸探測(cè)研究

doi: 10.11999/JEIT140995
基金項(xiàng)目: 

國(guó)家自然科學(xué)基金(61174177, 41172298),國(guó)家863計(jì)劃項(xiàng)目(2013AA10230207),湖北省自然科學(xué)基金(2014CFB145),湖北省水電工程智能視覺監(jiān)測(cè)重點(diǎn)實(shí)驗(yàn)室開放基金(2014KLA07)和三峽大學(xué)人才科研啟動(dòng)基金(KJ2014B056, KJ2014B060)資助課題

Research on Energy-efficient Contact Probing in Delay Tolerant Networks

  • 摘要: 在延遲容忍網(wǎng)絡(luò)中,為了發(fā)現(xiàn)在其通信范圍內(nèi)的鄰居節(jié)點(diǎn),網(wǎng)絡(luò)中的節(jié)點(diǎn)必須不斷地探測(cè)周圍的環(huán)境。這個(gè)接觸探測(cè)過程極其耗費(fèi)能量。如果網(wǎng)絡(luò)中的節(jié)點(diǎn)探測(cè)太過頻繁,會(huì)耗費(fèi)很多能量,且使得網(wǎng)絡(luò)能量的使用效率降低。另一方面,稀疏的探測(cè)可能導(dǎo)致節(jié)點(diǎn)失去和其它節(jié)點(diǎn)的接觸,從而錯(cuò)失交換數(shù)據(jù)的機(jī)會(huì)。因此,在延遲容忍網(wǎng)絡(luò)中能量效率和接觸機(jī)會(huì)之間存在著一種折中的關(guān)系。為了研究這種折中關(guān)系,該文首先對(duì)基于隨機(jī)路點(diǎn)模型(Random Way-Point model, RWP)的接觸探測(cè)過程進(jìn)行建模,得到恒定探測(cè)間隔下接觸探測(cè)概率的表達(dá)式,并且證明在所有平均探測(cè)間隔相同的策略中,以恒定間隔探測(cè)的策略是最優(yōu)的。其次,基于提出的理論模型,分析不同情況下能量效率和接觸探測(cè)概率之間的折中。最后,通過仿真實(shí)驗(yàn)驗(yàn)證該理論模型的正確性。
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出版歷程
  • 收稿日期:  2014-07-25
  • 修回日期:  2014-12-11
  • 刊出日期:  2015-06-19

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