Werbung
Appendix A - Wireless Basics
Wireless Basics
A wireless local area network (WLAN) is a cellular computer network that transmits and receives data with radio signals instead of wires. Wireless
LANs are used increasingly in both home and office environments, and public areas such as airports, coffee shops and universities. Innovative ways
to utilize WLAN technology are helping people to work and communicate more efficiently. Increased mobility and the absence of cabling and other
fixed infrastructure have proven to be beneficial for many users.
Technical Advancements of Wi-Fi 6
Wireless or Wi-Fi technology is another way of connecting your computer to the network without using wires. Wi-Fi uses radio frequency to connect
wirelessly, so you have the freedom to connect computers anywhere in your home or office network. Over these years, Wi-Fi, a collection of wireless
networking protocols based on IEEE 802.11 standard, has improved continually.
The adapter supports Wi-Fi 6 and features the following improvements over the previous wireless generations:
- UL and DL Orthogonal Frequency Division Multiple Access (OFDMA): channels are divided into subcarriers to allow for simultaneous transmission
among multiple devices simultaneously.
- Higher throughput than Wi-Fi 5 (the theoretical maximum is more than double)
- Overlapping Basic Service Sets (OBSS): Reduces interference by coloring traffic insidse a channel.
- Target Wake Time (TWT): Battery-powered devices can efficiently communicate awake and sleep time.
These technical innovations allow for higher speeds, much less latency, more efficient communication with multiple devices simultaneously.
You have probably noticed that more and more household devices support Wi-Fi connectivity, including televisions and home surveillance
quipment. As the number of wireless and IoT devices rapidly increases, Wi-Fi 6 brings improved performance for wider-range operation and tackles
the problems of resource contention. It improves communication efficiency among multiple devices transmitting data at the same time to achieve
better overall bandwidth utilization.
Wireless users can use the same applications they use on a wired network. Wireless adapter cards used on laptop and desktop systems support the
same protocols as Ethernet adapter cards. For devices that would like to bridge wired and wireless connections, a wireless adapter card such as the
AX9U can be easily installed on the devices to provide such link or to augment their existing wireless capability.
D-Link AX9U User Manual
16
Werbung
