Briefly introduces the advantages of wireless UWB technology

The Wireless World is booming, and various wireless technologies have begun to compete. The wireless UWB technology has great advantages in both cost and transmission speed. Other advantages are described below. The focus of this article is to introduce the six advantages of the wireless UWB technology.

The Ultra wide band is short for Ultra Wide Band. It is a non-carrier communication technology that transmits data using non-sine wave narrow pulses ranging from nanoseconds to microseconds, with fast transmission speed and low power consumption. At present, the ultra-wideband sample has been able to reach a transmission rate of Mbps in the 3-meter range, 80 Mbps in the 5-meter range, and 11 Mbps in the 10-meter range, while the power consumption is only 75nW! This power consumption is only equivalent to the background noise level of ordinary wireless devices.

Ultra-Wideband Wireless UWB technology is a "short-range" Transmission System for WiFi and WiMAX, and plays a huge role in the desktop. Its direct competitor is Bluetooth. Compared with the Bluetooth system, wireless UWB technology is much simpler, and it has a huge advantage in transmission rate and cost.

UWB has the following features:

1. strong anti-interference performance: the wireless UWB technology uses time-hopping spread spectrum signals, and the system has a large processing gain. When transmitting, the system disperses weak radio pulse signals in a wide band, the output power is even lower than the noise produced by normal devices. The signal energy is restored during receiving, and the Spread Spectrum gain is generated during the de-expansion process. Therefore, compared with IEEE 802.11a, IEEE 802.11b, and Bluetooth, UWB has stronger anti-interference performance at the same speed.

2. high transmission rate: the data rate of wireless UWB technology can reach dozens of Mbit/s to several hundred Mbit/s, which is expected to be 100 times higher than Bluetooth, or higher than IEEE 802.11a and IEEE 802.11b.

3. extremely wide bandwidth: The bandwidth used by the wireless UWB technology is above 1 GHz, up to several GHz. The capacity of the ultra-wideband system is large and can work with the current narrowband communication system without interference. In today's increasingly tense frequency resources, this has opened up a new time-domain radio resource.

4. Low Power Consumption: Generally, the wireless communication system needs to transmit the carrier continuously during communication. Therefore, a certain amount of power is required. However, without the use of the carrier, UWB only emits transient pulse waves, that is, directly sending them by 0 and 1, and only sends pulse waves when necessary. Therefore, the power consumption is small.

5. good confidentiality: The confidentiality of wireless UWB technology is manifested in two aspects: on the one hand, the use of hop-time spread spectrum, the receiver can only solve the transmit data when the transmit side Spread Spectrum Code is known; on the other hand, the transmit power spectrum density of the system is extremely low, which cannot be received by traditional receivers.

6. Very low transmission power: the transmit power of the wireless UWB system is very small, and the communication equipment can achieve communication with a transmit power less than 1 MW. Low transmit power greatly extends the system power supply time. Moreover, if the emission power is small, the electromagnetic radiation has little impact on the human body.