Appendix B Glossary | TP-Link TL-WN725N guide

TL-WN725N150Mbps Wireless N Nano USB Adapter User Guide

Appendix B: Glossary

¾802.11b - The 802.11b standard specifies a wireless product networking at 11 Mbps using direct-sequence spread-spectrum (DSSS) technology and operating in the unlicensed radio spectrum at 2.4GHz, and WEP encryption for security. 802.11b networks are also referred to as Wi-Fi networks.

¾802.11g - specification for wireless networking at 54 Mbps using direct-sequence spread-spectrum (DSSS) technology, using OFDM modulation and operating in the unlicensed radio spectrum at 2.4GHz, and backward compatibility with IEEE 802.11b devices, and WEP encryption for security.

¾802.11n - 802.11n builds upon previous 802.11 standards by adding MIMO (multiple-input

multiple-output). MIMO uses multiple transmitter and receiver3antennas to allow for increased data throughput via spatial multiplexing and increased range by exploiting the spatial diversity, perhaps through coding schemes like Alamouti coding. The Enhanced Wireless Consortium (EWC) was formed to help accelerate the IEEE 802.11n development process and promote a technology specification for interoperability of next-generation wireless local area networking (WLAN) products.

¾Ad hoc Network - An ad hoc network is a group of computers, each with a Wireless Adapter, connected as an independent 802.11 wireless LAN. Ad hoc wireless computers operate on a peer-to-peer basis, communicating directly with each other without the use of an access point. Ad hoc mode is also referred to as an Independent Basic Service Set (IBSS) or as peer-to-peer mode, and is useful at a departmental scale or SOHO operation.

¾DSSS - (Direct-Sequence Spread Spectrum) - DSSS generates a redundant bit pattern for all data transmitted. This bit pattern is called a chip (or chipping code). Even if one or more bits in the chip are damaged during transmission, statistical techniques embedded in the receiver can recover the original data without the need of retransmission. To an unintended receiver, DSSS appears as low power wideband noise and is rejected (ignored) by most narrowband receivers. However, to an intended receiver (i.e. another wireless LAN endpoint), the DSSS signal is recognized as the only valid signal, and interference is inherently rejected (ignored).

¾FHSS - (Frequency Hopping Spread Spectrum) - FHSS continuously changes (hops) the carrier frequency of a conventional carrier several times per second according to a pseudo-random set of channels. Because a fixed frequency is not used, and only the transmitter and receiver know the hop patterns, interception of FHSS is extremely difficult.

¾Infrastructure Network - An infrastructure network is a group of computers or other devices, each with a Wireless Adapter, connected as an 802.11 wireless LAN. In infrastructure mode, the wireless devices communicate with each other and to a wired network by first going through an access point. An infrastructure wireless network connected to a wired network is referred to as a Basic Service Set (BSS). A set of two or more BSS in a single network is referred to as an Extended Service Set (ESS). Infrastructure mode is useful at a corporation scale, or when it is necessary to connect the wired and wireless networks.

TL-WN725N specifications

The TP-Link TL-WN725N is a compact USB Wi-Fi adapter that enables users to easily connect their devices to wireless networks. This mini wireless adapter is designed for those who require a convenient and reliable way to access the internet on their laptops or desktops without the need for cumbersome cables. With its small size, it can be plugged into any USB port without blocking adjacent ports, making it an ideal solution for users who utilize multiple USB devices.

One of the key features of the TL-WN725N is its wireless N technology, which allows for data transfer rates of up to 150Mbps. This speed is sufficient for basic online activities such as web browsing, sending emails, and streaming music. The adapter operates on the 2.4GHz frequency band, which is commonly used for Wi-Fi connections. Its compatibility with various encryption standards, including WEP, WPA/WPA2, and WPA-PSK/WPA2-PSK, ensures that users can enjoy secure connections while protecting their personal information from potential threats.

The installation process of the TL-WN725N is straightforward, as it comes with an easy-to-use setup wizard. Users simply need to plug the adapter into a USB port, install the drivers, and they are ready to go. This plug-and-play feature makes it a user-friendly option for individuals who may not be tech-savvy. Additionally, the adapter supports Windows and Linux operating systems, broadening its usability across different devices.

Another notable characteristic of the TL-WN725N is its ability to provide a stronger and more stable connection compared to internal wireless cards. Its external positioning allows for better signal reception, reducing the likelihood of dropped connections and dead zones. Users can also benefit from the adapter's lightweight and portable design, allowing them to easily carry it in their bags for on-the-go internet access.

In summary, the TP-Link TL-WN725N is a practical solution for anyone looking to enhance their wireless connectivity. Its combination of wireless N technology, secure encryption support, easy installation process, and compact design makes it a valuable addition to any user's tech arsenal. Whether for home use or travel, this USB Wi-Fi adapter provides a reliable and efficient way to stay connected.