Dynamic rate adaptation for industrial WLAN
Dynamic rate adaptation for industrial WLAN
复制标题
工业 WLAN 的动态速率自适应
DOI：
10.1109/ictc.2013.6675423
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Dong
中科院分区：
文献类型：
--
作者：
Dwi Agung Nugroho;Muhammad Rizal Khaefi;Dong
针对工业无线网络中的自适应速率回退（ARF）算法，提出了一种优化方法。该算法基于接收端的信噪比信息和确认或块确认（ACK/BACK）信息。这种反馈的“收发器对”方法给出了当前通信的准确和真实的时间信息。目前的ARF算法大多考虑分组丢失并仅在MAC层修改帧，然后相应地改变调制方式。在该方法中，用于下一数据传输的调制技术根据SNR和ACK/BACK信息而改变。仿真结果表明，该方法在IEEE 802.11g中实现，在误码率和信道效率方面克服了当前（ARF）阈值。
This paper proposes a method to optimize the adaptive rate fallback (ARF) algorithm in WLANs for industrial wireless network. The proposed algorithm is based on signal to noise ratio (SNR) information and acknowledgment or block acknowledgment (ACK/BACK) packet from receiver. This feedback “transmitter and receiver pair” method is giving accurate and real time information of the current communication. The current ARF algorithms are mostly consider the packet loss and modify frame in MAC layer only, then change the modulation accordingly. In this proposed method, the modulation technique for next data transmission is changing according to SNR and ACK/BACK information. Simulation results show that the proposed method which implemented in IEEE 802.11g overcomes the current (ARF) threshold in terms of BER and channel efficiency.