【 Weak current College 】 home wireless network selection and application of seven questions doubts

Specifically, WLAN is not a true sense of the wireless Internet technology, this is the point from which it is defined (wireless LAN) can also be seen, it is a form of wireless LAN connections. At the same time, the wireless AP is not an Internet Exchange data, similar to the Modem's modem device, it is actually a wireless switch — from the wired network (e.g. the Internet) the received data into the wireless signal and issued, will receive a wireless signal is converted to data concurrency to the wired network. Therefore, if the wireless AP is similar to GPRS Internet device anytime, anywhere, that is, the "wireless" non-"wireless" Peter.

EEE802.11g or IEEE802.11n?
This is a frequently discussed topic, admittedly in performance, IEEE802.11n have tremendous advantages, 300Mbps transmission rate to meet the needs of high-bandwidth network applications. However, in my view, for the construction of the family, IEEE802.11g WLAN is still the best economic choice. Although it's only 54Mbps transfer rate, but the speed or higher DSL, LAN, and other family common broadband type access speed a lot, which is totally suitable for home users wireless broadband Internet access sharing.
Initial verify password?
As previously noted, the current majority AP provides a Web-based management, when a user first enters the management interface requires a username and password. In General, manufacturers in their product descriptions are annotated in the AP factory default username and password. If you buy a second-hand product, without manual available, then only to the manufacturer's home page to download the appropriate product manual. As for those who have been "former masters" set up a special account number and password of the wireless AP, you can use the "factory reset key" to restore their default values.
How to put in place?
AP's display is a science. Wireless signal, by their very nature is an RF signal interference problems exist, while the antennais a directional component, it can only to a specific direction of the radiation energy high strength, so the placement of antenna — the placement of the wireless AP to a large extent, affect the efficacy of radiofrequency field-and thus affect the signal quality and signal strength. For placing of this wireless access point, select the open as possible, no obstructions, in General, the location of the "Center" is the best signal coverage effect best location.
To concrete, 100 m² of floor plans generally is two bedroom and one living room, in the layout to a wireless network, the wireless access point is placed in the living room or the intersection of several rooms, the best results, place in the other room signal will be slightly less. More than 150 m² house style, this room is generally more complex, the same wireless gateway is placed on the intersection of mouth effect most ideal, placed in the other room, the signal needs to be tested before they can find out the wireless signal.
How to view the signal strength?
If the computer is using a WindowsXP or Windows2000 operating system, as long as the wireless network connectivity when you click on the taskbar status icon of the wireless network, you can know the strength of the wireless signal, this is the most intuitive detection method.
In addition, the United States market, most PCMCIA interface for wireless network cards with specialized management software with matching, it will be a detailed query wireless network status, set the function parameters, and so on. To LucentORiNOCO, for example, through its own ORiNOCOClientManager management software, you can implement signal viewing, channel selection, features such as wireless encryption, set up is also very convenient.
While some brand computers equipped with dedicated management software tend to be stronger, for example, use IBMAccessConnection IBMThinkPad laptop and the wireless card with the software, the wireless signal strength detectionvalues are accurate to 1%.
Signal is low?
This is every network users may encounter problems, mainly reflected in poor signal quality, data transfer instability and other symptoms. In General, you can add an external antenna, set the wireless channel, as well as adjust the wireless access point placement, and other ways to improve. If the above solution does not solve the problem, you should refresh the wireless card's firmware, upgrading the driver.
Home wireless network exists?
This point is in the affirmative. Room wall materials, furniture, furnishings, even the door switch will affect the wireless signal. As a result of the work of 802.11b/g band as the industry 2.4Ghz many devices of the band also happened to be in the band, so just jamming, 802.11a Kerrigan. Also noteworthy is that mobile phone signal interference for wireless network, and therefore greater use should be as far away as possible from the storage point for the wireless access point, so as not to affect the quality of the wireless network connection.
Wireless network secure?
Because wireless networks do not like the cable network that are geographically restricted, with the convenience of wireless signals can be accessing, so much attention to security issues. Home wireless network for data confidentiality requirements are not so strict commercial areas, but in the face of an increasingly dense network speed, nobody wanted to own a limited bandwidth is not familiar with others to share, so a home wireless network you should select the appropriate encryption.
In contrast there are two kinds: one is 64-bit/128-bit WEP data encryption. This way of safety, because the encryption/decryption process consumes bandwidth wireless networks as part, so the effective data transfer rate is affected.
The second is off the SSID of the AP, wireless markup so that wireless network SSID indicates that it will not appear in any of the available network connection, the user only after entering the SSID to connect, and the SSID of the AP marked in the management of AP can change (similar to a login boxIs the name entered by the user and password), so this method without loss transfer speeds at the same time also played a role of "encryption", effectively prevents unauthorized users from invasion, is your wireless home network is the best preventive measures.