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Wireless Network Research Oz Assignments
An answer to question number 1
Near Field Communication or NFC becomes ingrained in conjunction with NFC sensors when it comes to a shorter distance between two different devices. A tag is used to transfer data from any possible device irrespective of power. However, there is a requirement for small transmitters for effective and successful transformation of information, without which the transformation process will not be thriving (Zhao, Smith & Sample, 2015). For all Bluetooth, WI-FI, and other wireless signals, the NFC mechanism forms analogous patterns. Radio waves are used as an intermediary when information technology transmission is about to be processed between these devices. Nevertheless, there has to be implementations of additional requirements within the system to make sure that successful connection is established with the rest of the devices as well. NFC operation also requires utilizing RFID technology for the transfer of information from one device to the other since RFID technology makes use of the electromagnetic induction process for communication between data. The RFID technology has a unique advantage associated that ensures that no external power resources are being utilized since they use their own electromagnetic field for the purpose. The requirement for transmitting a radio frequency by NFC is of about 1356 MHz with a speed of about 424 Kb/second or 106212 (Lau, 2015). This a considerably high speed that can be considered enough to transfer music, pictures and any other form of contact details. It can be seen that there are three approaches for the operation of Near Field Communication or NFC that are available. Out of the three available approaches, the most suitable approach in this regard is the peer to peer mode. To establish a successful mode for effective exchange of confidential information, the specific modes of the peer to peer mode are used. At the times where a device receives specific data or information from a sender, it is regarded as a passive data and when the sender receives information from the device, it is termed as active data. In addition, car emulation mode for NFC devices may also be used as a smart card.
The NFC devices used as smart cards can also be defined as Contactless Credit Card, since it can be tapped to gain access to any system or even make payments. The tags attached to the NFC receiver devices are used for successful information transfer, which forms one of the major applications of NFC devices (Kim et al., 2015). The utilization of this specific technology and application along with a specific mode is regarded as the read write mode. There are impending risks associated with this technology as well. This can be the effect of snooping, working as a major challenge, where third party intrusion is inevitable but this would be the most unwanted outcome. To subdue this risk factor, it is required that the transmission be absolutely well encrypted. Security challenges can also take place while transmitting the information from the sender to the receiver end (Zhao, Smith & Sample, 2015). The technology can only be vulnerable because of an intermediary gaining unauthorized access over the information. Secured link and active communication can reduce any security challenges while information packets or datagram are being transmitted. Other risk regarding this would be intervention attacks, which also needs to be eliminated to establish a secured connection between the sender and user.
1. Kim, J., Banks, A., Cheng, H., Xie, Z., Xu, S., Jang, K. I., ... & Wei, P. (2015). Epidermal electronics with advanced capabilities in near?field communication. small, 11(8), 906-912.
2. Lau, S. S. (2015, December). Practical design of 13.56 MHz Near Field Communication (NFC) and Radio Frequency Identification (RFID) antenna using ferrite sheet on metallic surface by Network Analyzer. In Industrial Engineering and Software Engineering Management (IEEM), 2015 IEEE International Conference on (pp. 1362-1366). IEEE.
3. Zhao, Y., Smith, J. R., & Sample, A. (2015, April). NFC-WISP: A sensing and computationally enhanced near-field RFID platform. In RFID (RFID), 2015 IEEE International Conference on (pp. 174-181). IEEE.
4. Zhao, Y., Smith, J. R., & Sample, A. (2015, September). NFC-WISP: an open source software defined near field RFID sensing platform. In Adjunct Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2015 ACM International Symposium on Wearable Computers (pp. 369-372). ACM