A Middleware for the Internet of Things

The Internet of Things (IoT) connects everyday objects including a vast array of sensors, actuators, and smart devices, referred to as things to the Internet, in an intelligent and pervasive fashion. This connectivity gives rise to the possibility of using the tracking capabilities of things to impinge on the location privacy of users. Most of the existing management and location privacy protection solutions do not consider the low-cost and low-power requirements of things, or, they do not account for the heterogeneity, scalability, or autonomy of communications supported in the IoT. Moreover, these traditional solutions do not consider the case where a user wishes to control the granularity of the disclosed information based on the context of their use (e.g. based on the time or the current location of the user). To fill this gap, a middleware, referred to as the Internet of Things Management Platform (IoT-MP) is proposed in this paper.Comment: 20 pages, International Journal of Computer Networks & Communications (IJCNC) Vol.8, No.2, March 201

Distributed Time-Sensitive Task Selection in Mobile Crowdsensing

With the rich set of embedded sensors installed in smartphones and the large number of mobile users, we witness the emergence of many innovative commercial mobile crowdsensing applications that combine the power of mobile technology with crowdsourcing to deliver time-sensitive and location-dependent information to their customers. Motivated by these real-world applications, we consider the task selection problem for heterogeneous users with different initial locations, movement costs, movement speeds, and reputation levels. Computing the social surplus maximization task allocation turns out to be an NP-hard problem. Hence we focus on the distributed case, and propose an asynchronous and distributed task selection (ADTS) algorithm to help the users plan their task selections on their own. We prove the convergence of the algorithm, and further characterize the computation time for users' updates in the algorithm. Simulation results suggest that the ADTS scheme achieves the highest Jain's fairness index and coverage comparing with several benchmark algorithms, while yielding similar user payoff to a greedy centralized benchmark. Finally, we illustrate how mobile users coordinate under the ADTS scheme based on some practical movement time data derived from Google Maps

XML schema design and management for e-Government data interoperability

Open Access JournalThis journal issue entitled: ECEG 2009postprin

The Internet of Things: New Interoperability, Management and Security Challenges

The Internet of Things (IoT) brings connectivity to about every objects found in the physical space. It extends connectivity to everyday objects. From connected fridges, cars and cities, the IoT creates opportunities in numerous domains. However, this increase in connectivity creates many prominent challenges. This paper provides a survey of some of the major issues challenging the widespread adoption of the IoT. Particularly, it focuses on the interoperability, management, security and privacy issues in the IoT. It is concluded that there is a need to develop a multifaceted technology approach to IoT security, management, and privacy.Comment: 18 pages, International Journal of Network Security & Its Applications (IJNSA) Vol.8, No.2, March 201

Achieving Synergistic Effects by Combining Different Phytochemicals for the Prevention and Treatment of Cancer

AL ZAHARNA, M & CHEUNG, HY 2014, 'Achieving Synergistic Effects by Combining Different Phytochemicals for the Prevention and Treatment of Cancer' Hong Kong Pharmaceutical Journal, vol 21, no. 1, pp. 20 - 24 … AL ZAHARNA, M., & CHEUNG, H. (2014). Achieving Synergistic Effects by Combining Different Phytochemicals for the Prevention and Treatment of Cancer. Hong Kong Pharmaceutical Journal, 21(1), 20 - 24 … AL ZAHARNA M, CHEUNG HY. Achieving Synergistic Effects by Combining Different Phytochemicals for the Prevention and Treatment of Cancer. Hong Kong Pharmaceutical Journal. 2014 Jan;21(1):20 - 24 … AL ZAHARNA, Mazen; CHEUNG, Hon-Yeung / Achieving Synergistic Effects by Combining Different Phytochemicals for the Prevention and Treatment of Cancer … In: Hong Kong Pharmaceutical Journal, Vol. 21, No. 1, 01.2014, p. 20 - 24