The security of WLAN wireless networks is defined in the following four levels:
1. Spread Spectrum and frequency hopping wireless transmission technology make it difficult for the hacker to capture useful data;2. Set strict user passwords and authentication measures to prevent illegal user intrusion;3. Set up an additional third-party Data Encryption solution, which is hard to understand even if the signal is stolen.4. Adopt
hard to find such network security vulnerabilities.
Some wireless network card manufacturers have also added the wireless scanning function in related driver software. For example, the Proxim dual-mode card can simultaneously scan all suitable channels in the 802.11a and 802.11b frequencies, and intuitively display the signal strength and bandwidth.
The perfect Wi-Fi wireless protocol analyzer is much more
With the development of mobile communication in China, the construction of the third generation mobile communication network has become the focus of major telecom operators.
The third generation mobile communication technology test network of the Ministry of Information industry is led by the Ministry of Information industry to participate in the formation of the major telecommunications operators, the tes
In our real life, many complex systems can be modeled as a complex network for analysis, such as common power networks, aviation networks, traffic networks, computer networks, social networks, and so on. Complex network is not only a form of data, but also a means of scientific research. Research on complex networks has received extensive attention and research, especially as various online social platforms
Introduction
The author was fortunate to participate in the overall project design of the third generation mobile communication technology test network of the Ministry of Information Industry and the design work of the Beijing Area Test Network project. 3G test Network adopts WCDMA R99, CDMA2000 1X, TD-SCDMA three kinds of technology construction. When consideri
The network does not pass, this is the most network problem table image, but if you can access me, but I can not access you, this problem is more troublesome. This article is the author in the actual combat in a subnet mask caused by the fault summary.
The network is a phenomenon that often occurs, encounter this phenomenon, I believe many people will focus on
devices, wireless cameras, outdoor microwave links, wireless game controllers, ZigBee devices, fluorescent lights, WiMAX, and so on, even bad electrical connections-all of which can produce RF spectrum. None of these 802.11 devices can collaborate with 802.11 devices.
Wireless jamming error saying #4: "My infrastructure device automatically detects interference. ”
Some new, switched-based wireless infrastructure products can manage RF interference
In the quality system of computer networks, network management is one of the key links. Just as a manager is important to the life of a big family, the quality of network management will directly affect the quality of network operation. So, how can we choose the appropriate network management system and
Introduction to wireless network technology-Analysis of 4G stack system framework-4g stack system framework-this technology provides faster data rates and greater system capacity. The target peak speed is: 1 Gbps or more for low-speed mobile, hotspot coverage, and 100 Mbps for high-speed mobile and wide-area coverage. The above performance indicators mainly rely on two methods: Improving the spectrum effici
try to resend data packets. Wireless Network interference will cause unnecessary waste of money for enterprises, which is also a headache.
This may cause wireless network interference, which may lead to network latency and user dissatisfaction. Sometimes, when rf interference exists, the 802.11 Protocol automatically switches to a lower data rate (which also red
data rate during the presence of radio frequency interference (which also lowers the use of the wireless application) and tries to continue running. The worst case scenario is that 802.11 stops will wait until the jamming signal disappears, delaying for hours or longer. What are the RF interference sources? For 24. GHz Wireless network, the interference signal sources are as follows: microwave ovens, mobile phones, Bluetooth-enabled devices, freq
In this article, we will talk about what to do if your wireless network conflicts.
IT professionals should focus on managing unlicensed Wi-Fi spectrum to avoid network conflicts and optimize the performance of WLAN network applications. This kind of management involves many aspects. Conflicts can be produced by the col
MIMO is called multi-input multi-output.First, let's look at the concept of gain and how to calculate it:There are two important concepts in spread spectrum communication systems: processing gain and anti-interference tolerance.Processing gain is used to illustrate the improvement of signal-to-noise ratio of communication system, and is a performance index of system interference. Generally, the ratio of the spread
Introduction to Basic Network configuration method of Linux networkNetwork Information viewSet Network address:1You will see:1 device=eth02 bootproto=statics3 hwaddr=xx: 0C:£ º - :D 1:6f 4 onboot=Yes5 type=Ethernet6 ipaddr=192.168. 0.212 7 netmask=255.255. 255.0Bootproto=statics: Indicates that the static IP address is used.Onboot=yes: Indicates that the NIC is started when it is powered on.Take the dynami
classification of Mel Cepstrum coefficients 14%. Their implementation is very simple, with the above cascade of multiple RBM networks to form a deep network structure to extract the characteristics of music. The input raw data is the spectrum of the signal after the frame, plus the window. The classifier adopts SVM of support vector machine. The comparison method is to extract the MFCC feature coefficient
The following is the CentOS network management and network configurationWe set the network properties for the NIC in two ways, manually configured and automatically configured. The automatic configuration is obtained from the DHCP server on the host network and has at least one DHCP server. Manual configuration is avai
This essay will explain in detail the Linux system's advanced command of the network card, IP alias, and the knowledge of multiple NIC bindings under Linux.
First, the Network card Advanced command
In a previous essay on the CentOS of Linux Learning (ix)--LINUX System network Environment configuration, detailed explanation of the Linux system under the
Network Port Literacy One: Network card preliminary understandingThe network adapter is also known as a NIC or network interface card (NIC), and the English name is Interface Card. It is a device that makes computers networked. What is commonly referred to as a NIC is the network
With the improvement of social informatization, information demand has been developed from simple data information to interactive multimedia information, from special service to digital, voice, image Unified service and integrated network. The traditional IP network has been unable to meet the needs of new business, the development of new business has created a "bottleneck." In this case, the broadband IP
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.