基于正態(tài)分布的一維無(wú)線傳感器網(wǎng)絡(luò)覆蓋問(wèn)題研究

唐懿芳

摘要:實(shí)驗(yàn)表明一維區(qū)域上傳感器網(wǎng)絡(luò)節(jié)點(diǎn)隨機(jī)覆蓋模型是服從正態(tài)分布的。給出了基于正態(tài)分布的一維區(qū)域上的無(wú)線傳感器網(wǎng)絡(luò)的節(jié)點(diǎn)覆蓋概率和覆蓋數(shù)計(jì)算方法。仿真實(shí)驗(yàn)證明，基于隨機(jī)正態(tài)分布的一維區(qū)域覆蓋，節(jié)點(diǎn)感知半徑是影響節(jié)點(diǎn)覆蓋數(shù)的主要因素。

關(guān)鍵詞：無(wú)線傳感器網(wǎng)絡(luò)；一維區(qū)域；節(jié)點(diǎn)覆蓋模型；覆蓋數(shù)；正態(tài)分布

中圖分類號(hào)：TP393文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1009-3044(2012)15-3554-04

Study on the Coverage Problem of one-demension Wireless Sensor Network Based on Normal Distribution

TANG Yi-fang

(College of Computer Engineering and Technology, Guangdong Vocational Institute of Science and Technology, Zhuhai 519090, China) Abstract: The experiments show that random coverage model of sensor nodes on one demension region obeys normal distribution.the pa per gives the calculation method of coverage probability and coverage number. Simulation experiments show that for the one-demension coverage model which based on normal distribution, nodes sensing radius is the main factor that affects the nodes coverage number.

Key words: Wireless sensor network; one-demension region; nodes coverage model; coverage number; normal distribution

給出了一維區(qū)域是直線和弧線的結(jié)合的定義。實(shí)驗(yàn)表明，節(jié)點(diǎn)的隨機(jī)分布服從正態(tài)分布規(guī)律。討論了連通條件下節(jié)點(diǎn)感知半徑和通信半徑之間的關(guān)系，給出一維區(qū)域基于正態(tài)分布的無(wú)線傳感器網(wǎng)絡(luò)節(jié)點(diǎn)的覆蓋概率與覆蓋數(shù)計(jì)算方法。仿真結(jié)果表明，感知半徑是決定節(jié)點(diǎn)覆蓋率和區(qū)域覆蓋數(shù)的主要因素。一維區(qū)域無(wú)線傳感器網(wǎng)絡(luò)的拓?fù)浣Y(jié)構(gòu)、路由控制、節(jié)點(diǎn)能量平衡等都是很有意義的問(wèn)題，應(yīng)是今后一維區(qū)域無(wú)線傳感器網(wǎng)絡(luò)的主要研究?jī)?nèi)容。