What is the Difference Between a 5G Router and a Modem? In a typical internet connection scenario, an internet service provider supplies a wired internet connection to the modem via either a coaxial or fiber optics cable. Devices can then use Ethernet cables to connect to the modem itself for...
The leader AP function is an extended function of Fat APs. Like an AC, a Fat AP enabled with the leader AP function can be deployed to build a WLAN together with multiple Fit APs. On this WLAN, the Fat AP manages and configures the Fit APs in a unified manner, enabling STAs to easi...
On a WLAN, users require mobile communication. The signal coverage of a single AP, however, is limited. As such, users often move from the coverage area of an AP to that of another AP. To prevent network interruptions while users move between different APs, the concept of WLANroamingis in...
The Global System for Mobile communications (GSM) is an international standard for mobile telecommunications. If you travel in Europe or any other parts of the world, GSM is the only type of cellular service that is available. Do GSM phones work in the U.S.?
When the radio sends data in OFDM modulation mode, it divides a frame into different data blocks to send. To ensure data transmission reliability, the guard interval (GI) is used between the data blocks to ensure that the receive end correctly parses each data block. During spatia...
What is DFT's OFDM in 5G? Direct Fourier Transform spread OFDM, commonly abbreviated to DFT-s-OFDM, is an SC or single carrier-like transmission scheme that can be combined with OFDM that gives significant flexibility for a mobile communications system like 5G. It is more commonly known as ...
OFDM also has several advantages compared to standard frequency-division multiplexing. Theradio frequencyreceiver is simpler in OFDM because the entire signal can be received in a single frequency selective filter and separated in software using a fast Fourier transform, while an FDM system requires a...
Requires a WiFi 6 or newer router: OFDMA is a feature of the WiFi 6 (802.11ax) standard and is not supported by older routers. As such, you may need to purchase a new router to take advantage of it. Higher CPU usage: The increased complexity of OFDMA compared with OFDM means that OF...
Before 802.11ax, the OFDM mode was used for data transmission, and users were distinguished based on time segments. In each time segment, one user occupied all subcarriers and sent a complete data packet, as shown in the following figure. Figure 1-3 OFDM working mode OFDMA is a more effic...
Before 802.11ax, the OFDM mode was used for data transmission, and users were distinguished based on time segments. In each time segment, one user occupied all subcarriers and sent a complete data packet, as shown in the following figure. Figure 1-3 OFDM working mode OFDMA is a more effic...