【摘要】：物聯(lián)網(wǎng)(IoT)節(jié)點(diǎn)防碰撞算法難以解決IoT節(jié)點(diǎn)數(shù)據(jù)沖突,造成嚴(yán)重的信號干涉。為此,提出一種新的物聯(lián)網(wǎng)節(jié)點(diǎn)信息防碰撞算法。通過構(gòu)建射頻識別信號的離散正交調(diào)制與解調(diào)機(jī)制,降低節(jié)點(diǎn)間信號因互相干涉而導(dǎo)致的信道碰撞,建立聯(lián)合退避-功率感知機(jī)制,定義節(jié)點(diǎn)數(shù)據(jù)退避防沖撞規(guī)則,以改善節(jié)點(diǎn)信號發(fā)射功率的波動(dòng)幅度。實(shí)驗(yàn)結(jié)果表明,與ColorWava算法和信息決策控制算法相比,該算法具有更長的節(jié)點(diǎn)信號識別距離與更低的信道碰撞概率。
[Abstract]:The collision prevention algorithm of (IoT) nodes in the Internet of things is difficult to solve the data conflicts of IoT nodes, resulting in serious signal interference. Therefore, a new information collision prevention algorithm for Internet of things (IoT) nodes is proposed. By constructing discrete quadrature modulation and demodulation mechanism of radio frequency identification (RFID) signals, the channel collision caused by interference between nodes is reduced, a joint Backoff / power sensing mechanism is established, and the rules of data collision avoidance and collision prevention are defined. In order to improve the node signal transmission power fluctuation amplitude. The experimental results show that compared with the ColorWava algorithm and the information decision control algorithm, the algorithm has longer recognition distance and lower channel collision probability.
【作者單位】： 河南工程學(xué)院計(jì)算機(jī)學(xué)院;河南工業(yè)大學(xué)信息科學(xué)與工程學(xué)院;
【基金】：國家“863”計(jì)劃項(xiàng)目(2012AA101008) 河南省高等學(xué)校重點(diǎn)科研項(xiàng)目(16B520007)
【分類號】：TN929.5;TP391.44

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