In this paper, we propose a preamble based medium access control (P-MAC) mechanism in Ad-Hoc network. Different from traditional carrier sense multiple access (CSMA) in Ad-Hoc network, P-MAC uses much shorter preamble to establish the network. First, we propose the P-MAC mechanism to shorten the time of establishing the Ad-Hoc network. Based on the P-MAC, we propose a more efficient way to maintain the network. Next, focusing on the power line communication (PLC) network which is a kind of Ad-Hoc network, we propose a frequency division power line communication (FD-PLC) network architecture to obtain the best communication frequency. To obtain the best frequency, i.e., highest SNR, we design the frequency sweeping mechanism which can determine the frequency of uplink and downlink communication before the transmitter and receiver communicate. Due to the large-scale networks in industry, P-MAC can be exploited to speed up the establishment of the Ad-Hoc PLC network. Finally, we compare our mechanism with CSMA. Numerical results indicate that our strategy greatly shortens the time of establishing the Ad-Hoc network.
翻译:在本文中,我们提议在A-Hoc网络中采用基于序言的中型出入控制(P-MAC)机制,不同于A-Hoc网络中传统的承运人感知多重准入(CSMA)机制,P-MAC使用较短的序言来建立网络。首先,我们提议P-MAC机制来缩短建立A-Hoc网络的时间。根据P-MAC,我们提议一个更有效的维持网络的方法。接着,侧重于电线通信(PLC)网络,这是一种A-Hoc网络,我们提议建立一个频率分电线通信(FD-PLC)网络结构,以获得最佳通信频率。为了获得最佳频率,即最高SNR,我们设计了可以确定在发射机和接收器通信之前建立上下链联系频率的频率扫荡机制。由于工业规模庞大的网络,P-MAC可以被利用来加速建立A-Hoc PLC网络。最后,我们将我们的机制与C-C网络进行比较。数字结果显示,我们的战略大大缩短了Ad-Hoc网络的建立时间。