Technology is science or knowledge applied to a definite purpose. Technology is a broad concept which can never end. Imagine the era in which people used to walk Miles to convey message from one person to another person. As years passed telegraph came into practice then telephone then radio and the technology's roles are still changing.Now we are in the 21st century which can be called as era of wireless communication. Invention of mobiles is very significant. Technology is now transformed into wireless technology. Advancements in different wireless technologies like 5G, LTE, etc have increased potential capabilities of IoT. Wireless technology also assists in business to increase profit.
What is wireless technology?
Wireless technology is the technology that permits us to communicate without using wires or cables over long distance.
Top 5 wireless technology trends are
1. Wifi
Wifi is wireless network that uses radio frequency signal instead of wires to connect devices( mobile, laptop,tablet,etc) to Internet. Under ideal conditions 2.4 GHz Wifi will support up to 450 Mbps or 600 Mbps, while 5 GHz wifi will support upto 1300 Mbps. Maximum speed depends on what wireless standard a router supports.
2. Bluetooth
Bluetooth is a technology standard for exchanging data over short distances using short wavelength radio transmissions in the ISM brand from 2400-2480 MHz. This enables users to automatically connect a wide range of computing and telecommunication devices within a range of 10 meters.
3. 5G cellular
5G provides a highly flexible and scalable network technology for connecting everyone and everything everywhere. It provides resilient cloud-native core network with end to end support for network slicing. Low band 5G uses frequency range of 600-700 MHz speed is around 250 Mbps. Mid band 5G uses microwaves of 2.5-3.7 GHz allows speed of 100-900 Mbit/s. High band 5G uses frequency of 25-39 GHz allows speeds of Gbit/s.
4. Millimeter wave wireless
The Millimeter wave band is part of the radio frequency spectrum, comprised of frequencies between 30 GHz and 300 GHz corresponding to a wavelength range of 10 to 1 mm. The photon energy of MMwaves ranges from 0.1 to 1.2 meV. It can be used in a broad range of products and services. These are also known as Millimeter band. It enables higher data rates than at lower frequencies ( such as Wifi and current cellular networks).
5. Wireless sensors network (WSN)
Wireless sensors network is the collection of homogenous, self organized nodes called as sensor nodes. These nodes have the event sensing capabilities, data processing capabilities. Some challenges in wireless sensors network are high bandwidth demand, high energy consumption etc. Frequency ranges are 315 MHz, 433 MHz, 868 MHz.
Importance of wireless technology
- Avoid use of cables.
- Offers productivity, convenience, and cost advantages over wired technology.
- Goes where cable cannot.
- Increased scalability.
- Wireless networking could allow you to offer new products.
- WSN made it possible to replace many traditional equipments by small sensors in medical field.
Impact of wireless technology on human beings
- 5G radiations are carcinogenic.
- Wifi causes stress, testicular damage, apoptosis etc.
- Bluetooth radiations can lead to health problems including fertility.
- Heating of eyes and skin caused by absorption of mmWave energy in the human body.
Use of wireless technology is rapidly increasing and playing an important role in people's lives across world. Wireless systems are constantly evolving as more and more practical options for conveniently charging smartphones and other mobiles. User experience is the key factor that drives technology development, paving the way for safer and more convenient devices accompanying us in every day life.