NFC stands for Near Field Communication. NFC is a short range, low-speed set of wireless communication protocols for exchange of data between two electronic devices. The range of NFC is about 4 cm or less. They can be used for contact less payments using mobile handsets without the use of any credit or debit card. … Read more
3G and 4G are cellular standards that can be utilized for wireless communication. Cellular standards actually found its significance since the era of 2G or GSM. GSM is the second in the generation of cellular technology history and it stands for Global System for Mobile Communication. It had greater capacity and efficiency compared to the … Read more
6LowPAN stands for Internet Protocol version 6 over low power Personal Area Networks. It defines encapsulation and header compression mechanisms. It can be used across multiple platforms like Ethernet, Wi-Fi, IEEE 802.15.4 and sub-1GHz ISM. The IPv6 stack is the key attribute which has been a significant development to support internet of things (IoT) applications … Read more
Radio Frequency Identification (RFID) is yet another technology which taps the power of radio waves to transmit in a wireless network to uniquely identify an object, person or animal. The Internet of Things or IoT solutions require radio capability to receive and transmit radio waves as a means of communication between the IoT devices as … Read more
Bluetooth is a short-range wireless communication aimed to replace the conventional cables and wires to communicate between fixed or mobile devices. It allows the user to attend calls from their headphones itself. It allows the keyboard and mouse to go wireless. It allows files to be shared over a short distance e.g. ‘Air Drop’. It … Read more
Z-Wave is a wireless protocol that uses radio waves to transmit information. It is primarily used in smart homes particularly for control, monitoring and status reading for household appliances having physical range of 100 meters. It operates in ISM band and is developed for low bandwidth data communication applications. This technology, due to its interoperability … Read more
Zigbee is a wireless technology based on IEEE 802.15.4 standard which very well suits the unique needs of low cost, low power wireless IoT networks. It was created by the ZigBee Alliance which comprises of technology partners like Philips, Motorola, Intel and HP. It operates in the unlicensed band including 2.4 GHz, 900 MHz and … Read more
Often many of us get confused with the two similar terminologies “Wi-Fi” and “Wi-Fi Direct”. Wi-Fi Direct is similar to Wi-Fi technology except that the devices can connect and transfer data directly without the need of having being connected to a wireless Access Point (router or modem). It is also an IEEE 802.11 standard defining … Read more
Wi-Fi is the wireless networking technology that connects the device with the Internet. Rather than using wires it uses radio waves to transmit information. Wi-Fi stands for Wireless Fidelity. When an antenna receives this radio wave, an electromagnetic field is created which can travel through space. It is based on IEEE 802.11 family of standards. … Read more
Wired Communication implies transmission of data from the transmitter to the receiver end point over a wired physical medium. Examples of wired communication includes Telephone lines and Television transmission system. It may use devices like ethernet, RS-232 or RS-485 cables or Universal Serial Bus (USB) for data transmission. It is advantageous to use Wired Communication … Read more