【摘要】：針對(duì)監(jiān)測(cè)覆蓋效果最佳的正六邊形,利用隨機(jī)幾何理論建立無(wú)線傳感器網(wǎng)絡(luò)模型,并根據(jù)節(jié)點(diǎn)分布情況,推導(dǎo)計(jì)算節(jié)點(diǎn)距離的累計(jì)分布函數(shù)和概率密度函數(shù)。采用功率控制機(jī)制,研究CSMA協(xié)議下的網(wǎng)絡(luò)中斷概率和網(wǎng)絡(luò)傳輸容量。仿真結(jié)果表明,正六邊形覆蓋監(jiān)測(cè)區(qū)域內(nèi)的系統(tǒng)中斷概率較低,網(wǎng)絡(luò)傳輸容量較大�？臻g分組密度、網(wǎng)絡(luò)編碼效率、退避次數(shù)和重傳次數(shù)決定了網(wǎng)絡(luò)傳輸容量的大小,這為研究無(wú)線傳感器網(wǎng)絡(luò)的傳輸性能提供了理論參考依據(jù)。
[Abstract]:Aiming at the hexagon which has the best monitoring coverage, the model of wireless sensor network is established by using random geometry theory, and the cumulative distribution function and probability density function of node distance are derived according to the distribution of nodes. The power control mechanism is used to study the network interrupt probability and network transmission capacity under CSMA protocol. The simulation results show that the outage probability of the system is low and the transmission capacity of the network is large. Spatial packet density, network coding efficiency, Backoff times and retransmission times determine the transmission capacity of the network, which provides a theoretical basis for the study of wireless sensor network transmission performance.
【作者單位】： 昆明理工大學(xué)信息工程與自動(dòng)化學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(61163051)
【分類(lèi)號(hào)】：TN929.5;TP212.9

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