NT1330 Unit 1 Assignment 1

We can describe IoT as connect things like smartphones, personal computer and any other electronic devices and connected together as a new way in communicating between things and people and between things themselves [1]. IoT rapidly growing from industrial machine to consumer goods for sharing information and completing tasks [2]. According to [1], the number of devices connected to the Internet is expected to be increased from 100.4 million in 2011 to 2.1 billion by the year 2021 growing at a rate of 36% a year. Figure 1 shows that statistics from Cisco. Cisco Systems, Inc. is an American multinational technology company that designs, manufactures and sells networking equipment. Based on Cisco, IoT hasn 't existed in 2003 as the number of connected things was small given that universal devices such as smartphones were just being introduced. The rapid growth of smartphones and tablet PCs lead to increased number of devices connected to the Internet to 12.5 billion in 2010, whereas the world’s human population increased to 6.8 billion, the result of the number of connected devices per person is 1.84 for the first time in history. From these figures, Cisco predicts IoT was “born” sometime between 2008 and 2009. In 2015, there are 25 billion devices connected to the Internet and Cisco predicts the number will continue rises up to 50 billion devices connected to the Internet by 2020.
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To provide a strong bi-directional communications link with comparably long range, low latency for fast receptivity, low power and a satisfactory data rate to combine information from many connected devices, these “things” are mutually connected over a framework by using combinations of ZigBee, sub-GHz, Wi-Fi or powerline communications (PLC)