International Journal on Recent and Innovation Trends in Computing and Communication ISSN: 2321-8169 Volume: 2 Issue: 8 2510 – 2513 _______________________________________________________________________________________________ 2510 IJRITCC | August 2014, Available @ http://www.ijritcc.org _______________________________________________________________________________________ Internet of Things: Usage of LiFi and Need for Flow Control Protocol B R Vatsala Dept of Computer Science and Engineering The National Institute of Engineering Mysore, India vat_mys@yahoo.com Dr. Vidya Raj C Dept of Computer Science and Engineering The National Institute of Engineering Mysore, India vidya_rajc@yahoo.com Abstract —The Internet of Things (IoT) is the future of Internet. It is the network of physical objects accessed through Internet. The objects have embedded sensors that will capture potentially enormous amounts of data, A processing system inside the object processes the captured data and these processed data are to be transmitted as quickly as possible. Thus there is a requirement for high bandwidth network and appropriate data transfer protocols. Keywords-IOT;Bandwidth;LiFi;Flow control protoco;Flow Completion Time __________________________________________________*****_________________________________________________ I. INTRODUCTION The Internet of Things (IoT) is part of the Internet of the future and will comprise billions of intelligent communicating ‖ things‖ or Internet Connected Objects (ICOs) that will have sensing, actuating, and data processing capabilities [1]. Each ICO will have one or more embedded sensors that will capture potentially enormous amounts of data, which need to be transmitted as quickly as possible requiring more bandwidth. LIFI is one potential solution for this. LiFi can be thought as a light based Wi-Fi. That is, it uses light instead of radio waves to transmit information providing large bandwidth, it is eco friendly and low cost compared to WiFi[13][15] If ICOs are connected using LiFi, it means that they communicate fast utilizing high bandwidth only in the local area. When the information is to be transmitted to or received from Internet, which has comparatively low bandwidth there is a need for a flow control protocol that synchronizes LiFi and Internet, but at present no such protocol exists implicating a need to design and implement a new protocol for the above said purpose. This paper is organized as follows. Section II elaborates on Internet of Things and its requirements Section III discusses the LiFi Technology. Section IV discusses the need for flow control protocol for IOT. II. INTERNET OF THINGS The IoT will consist of billions of digital devices, people, services and other physical objects having the potential to seamlessly connect, interact and exchange information about themselves and their environment. It will combine the power of universal network connectivity with embedded systems, sensors and actuators in the physical world. It allows devices to communicate with each other, access information over the Internet, store and retrieve data and interact with users, smart, pervasive and always connected environments. The main strength of the IoT idea is the high impact it will have on several aspects of everyday-life and behavior of potential users. From the point of view of a private user, the most obvious effects of the IoT introduction will be visible in both working and domestic fields. In this context, e-commerce, e-health, enhanced learning are only a few examples of possible application scenarios in which the new paradigm will play leading role in the near future. Similarly, from the perspective of business users, the most apparent consequences will be equally visible in fields such as, automation and industrial manufacturing, logistics, business/process management, intelligent transportation of people and goods. the US National Intelligence Council foresees that ‗‗by 2025 Internet nodes may reside in everyday things – food packages, furniture, paper documents, and more‖. It highlights future opportunities that will arise, starting from the idea that ‗‗popular demand combined with technology advances could drive widespread diffusion of an Internet of Things (IoT) that could, like the present Internet, contribute invaluably to economic development [2] Fig 1 gives the application of IoT in day to day life. Figure 1. IoT Scenario The vision of IoT can be seen from two perspectives— ‗Internet‘ centric and ‗Thing‘ centric. The Internet centric architecture will involve internet services being the main focus while data is contributed by the objects. From a technical point of view,The capabilities of the Internet of Things include: Communication and cooperation,