| 摘要: |
| 低压电力线通信（Low Voltage Power Line Carrier Communication,LVPLC）的介质访问控制（Medium Access Control,MAC）协议是影响网络吞吐量的重要因素。针对LVPLC精确人工蛛网网络中由于非对称PLC信道影响而导致吞吐量相对较低的问题，改进了已有的p-载波侦听多路访问协议（p-persistent Carrier Sense Multiple Access,p-CSMA），提出了一种自适应载波侦听多路访问（Adaptive Carrier Sense Multiple Access,ACSMA）协议来优化有限负载下的吞吐量。该协议可通过动态调整概率，降低了数据包的冲突概率，优化了电力线信道的传输状态，最大限度地提高了吞吐量。仿真实验结果表明，ACSMA显著提升了多种通信状态下的吞吐量。 |
| 关键词: 低压电力线通信(LVPLC） 自适应载波侦听 人工蛛网网络 多路访问控制协议 |
| DOI：10.20079/j.issn.1001-893x.210531005 |
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| 基金项目: |
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| Adaptive carrier sense multiple access protocol based on artificial cobweb |
| WU Di,BAI Hua,WANG Zhengyong,WANG Taoyue,LIN Bin,CHU Ruxu |
| (Zhejiang Huayun Power Engineering Design Consulting Co.,Ltd.,Hangzhou 310006,China;Hangzhou Zhiwei Yilian Power Technology Co.,Ltd.,Hangzhou 310012，China) |
| Abstract: |
| Low voltage power line communication(LVPLC) medium access control（MAC） protocol is an important factor affecting network throughput.For the problem of low throughput in LVPLC precise artificial cobweb network due to asymmetric PLC channel,the existing p-persistent carrier sense multiple access(p-CSMA) protocol is improved and an Adaptive Carrier Sense Multiple Access(ACSMA) protocol is proposed to optimize throughput under limited load.The protocol can reduce the collision probability of packets by dynamically adjusting the probability,optimize the transmission state of power line channel,and maximize the throughput.Simulation results show that ACSMA can significantly improve the throughput in various communication states. |
| Key words: low voltage power line communication(LVPLC) adaptive carrier sense artificial cobweb multiple access control(MAC) protocol |
《电讯技术》编辑部 