Wireless communication technology is widely used in various electronic products, changing the way people communicate and improving the efficiency of information transmission between electronic devices. It is a technological development that completely changes the way humans live.

The new generation of wireless communication technology is no longer limited to traditional music and voice transmission applications. With the rapid development of computers, mobile phones, and IoT applications, wireless communication technology is beginning to shift towards digitization and informatization. This change accelerates the development of technology products towards mobility, portability, and low power consumption, making these products lighter and operate for longer periods of time.

Selection and Design Techniques of Wireless Communication Technology

Diverse wireless communication technologies meet different application needs
In addition to traditional wireless communication applications, there are various common technologies in the field of wireless communication, each tailored to different application needs. The following will introduce some common wireless communication technologies based on the application field and transmission distance of the network.

1. Cellular technology

In the 1970s, wireless communication entered the era of mobile communication, and the introduction of cellular technology enabled mobile phone networks to achieve segmented coverage. In 1983, the United States launched the first generation mobile communication system (1G), mainly based on analog signal transmission. The subsequent 2G technology (in the 1990s) introduced digital speech compression technology, making data transmission possible. 3G (the third generation mobile communication) technology was introduced in the early 2000s to provide higher data transmission rates and support richer Internet data applications. Subsequently, 4G LTE technology came out around 2010, bringing about a revolution in high-speed mobile Internet. The current wireless communication technology has entered the 5G era, characterized by higher data rates, low latency, and a large number of connections. In addition, research on 6G is underway and is expected to achieve faster and lower latency global wireless connectivity, further driving the development of fields such as artificial intelligence (AI) and virtual reality (VR).

2. Wireless Personal Area Network (WPAN)

Wireless personal area network is a wireless network designed specifically for short-range communication, typically used for connecting personal devices such as mobile phones, headphones, wearable devices, etc. The range of WPAN is usually limited to around 10 meters, but it can connect multiple devices more flexibly and with lower power consumption. Common WPAN technologies include Bluetooth, Zigbee, Matter, Ultra Wideband (UWB), NFC (Near Field Communication), Infrared (IR), Thread, Z-Wave, 6LoWPAN, etc. These WPAN technologies each have their own advantages and specific application scenarios, mainly focusing on short-range, low-power connectivity requirements, and are important communication technologies for personal and smart home devices.

3. Wireless Local Area Network (WLAN)

Wireless local area network technology has undergone decades of development, from low rate and short-range communication in the early days to high bandwidth and low latency connections today. WLAN technology is widely used in homes, offices, public places, and more. The most commonly used standard for WLAN is the IEEE 802.11 series, also known as Wi Fi technology. The first WLAN standard was defined in 1997, with a transmission rate of only 1 to 2 Mbps and a frequency band of 2.4 GHz. Subsequently, there were 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, Wi Fi 6, Wi Fi 6E, and the latest Wi Fi 7 (IEEE 802.11be), which introduced wider channels, multiple connectivity capabilities, multi band operation, and 16x16 MU-MIMO technology. These improvements will further enhance the performance and stability of Wi Fi, making it suitable for applications with higher bandwidth requirements, such as smart factories and autonomous driving.

4. Low Power Wide Area Network (LPWAN)

Low power wide area network is a wireless communication technology designed specifically for the Internet of Things, aimed at connecting long-distance, low-power devices and transmitting small amounts of data with low bandwidth. LPWAN technology has been widely applied in fields such as smart cities, agriculture, logistics, and industrial automation, and continues to develop with the increasing demand for the Internet of Things. Common LPWAN technologies include LoRa, Sigfox, NB IoT, LTE-M. With the further integration of 5G technology and the Internet of Things, cellular IoT technologies such as NB IoT and LTE-M will be more widely applied. In the future, the development of LPWAN technology will continue to drive application innovation in fields such as smart cities, industrial automation, and environmental monitoring.