Tharinda Nishantha Vidanagama

M2M gateway selection scheme for smart wireless devices

Wireless standardization activities such as the Bluetooth V4.x (Bluetooth smart) have led to an explosive growth in innovative short-range wireless devices capable of providing various services to assist everyday life. Allowing Machine-to-Machine (M2M) communication between these M2M devices also enable new commercial service opportunities. The M2M service providers including telecom carriers may need to establish new networks to accommodate M2M interactions while identifying new business opportunities. Typically M2M devices need another capable device such as a smartphone to act as a gateway to connect to the Internet to operate at its full potential. We propose a scheme where any Internet enabled device in the surrounding environment can act as an M2M gateway for M2M devices. This eliminates the need for the M2M device user to also own an Internet enabled device such as a smartphone to obtain services such as Online-to-Offline. This scheme faces new challenges such as, how to identify a best M2M gateway for a required service and QoS etc. This paper proposes a method to select an M2M gateway among many others, in order to increase service availability while obtaining better signal strength for higher QoS. The performance of the proposed method is evaluated using real world data collected at an exhibition with encouraging results.

Reduction of Message Misdirection in Description Based Clustered Ad Hoc Networks

Future home appliances will have many useful built-in functions. A communication network that allows a user to access these built-in functions and to control the appliances is highly desirable. An ad hoc network can be easily deployed to connect these home appliances. For such a home network, ease of use must be given higher consideration. This paper discusses description based ad-hoc network routing where the nodes are given descriptions or keywords such as living room TV, kitchen oven etc. as identifiers. We propose three description based routing mechanisms: Single Routing Cache, Directional Routing Cache, and Proportional-Directional Routing Cache. Through simulation, we show that in all three methods the message delivery is 100% success in our configuration, but the amount of misdirected messages experienced by each method is different. The Proportional-Directional Routing Cache shows the least message misdirection with most preferable resource usage.

Mobility in a description based clustered ad hoc network

Wireless mobile ad hoc networks can be used as a means to ease and support life in an ordinary house. As future home appliances will have many useful built-in functions, a communication network that allows a user to access these built-in functions and to control the appliances is highly desirable. This paper proposes a routing algorithm for mobility in a description-based clustered ad-hoc network where the nodes are given descriptions or keywords such as “living room TV”, “kitchen oven”, etc. as identifiers. In this paper, we discuss and compare the routing and the number of control messages required to achieve a higher message delivery success rate for frequent and infrequent communication of nodes with mobility. When communication is infrequent a search is performed for the destination regardless of mobility. The proposed algorithm handles mobility efficiently while ensuring a high accuracy on message delivery with the least amount of control messages.

Towards realization of an IoT environment: A real-life implementation of an IoT environment and its analytics

Researchers have envisioned a plethora of theories, applications and usages for Internet-of-Things (IoT) where Active and Assisted Living (AAL) is identified as a necessity in todays world. With the technology standardization activities such as the Bluetooth V4.x (Bluetooth smart) have led to an explosive growth in innovative short-range wireless devices capable of providing various services to AAL. Allowing machine-to-machine (M2M) communication between these devices also presents new commercial service opportunities. Communication service providers, including telecom carriers, may need to establish new networks to accommodate M2M interactions and reinvent their business strategies. Typically, simple M2M or IoT devices need another capable device such as a smartphone to act as a gateway to the Internet to operate at their full potential. This paper investigates a novel IoT architecture in which any Internet-enabled device in the vicinity can act as an M2M gateway for IoT devices. This eliminates the need for the IoT device user to also own a smartphone or an Internet-enabled device to obtain services such as online-to-offline. This paper describes a novel IoT architecture test bed suitable for short-range wireless devices. The test beds implementation, advantages/disadvantages and sample analytics from the gathered data from a real-life event are described with encouraging results.