• Growing green with improved profit through reduced power consumption in LTE networks

      Kanwal, Kapil; Safdar, Ghazanfar Ali; University of Bedfordshire (Association for Computing Machinery, 2017-03-31)
      Long Term Evolution (LTE) is well known 4G technology which promises higher data rates. Due to advancements in smart phones and new applications, the user's data requirements have significantly increased. The data hungry users engage radio resources over long periods of time thus resulting into higher energy consumption by Base stations (BSs). Increased energy consumption due to higher data rates directly increases Operational Expenditure (OPEX) thereby ensuing economic and environmental benefits, i.e. profitability and Global Warming. This paper presents detailed performance analysis of our novel joint resources block switching off and bandwidth expansion based energy saving scheme. Our proposed scheme offers 29% energy saving thus results in to decreased CO2 emissions (approximately 1.12 tonnes/ BS) and reduced OPEX thereby enabling mobile vendors to have high profile in Growing Green and help them to improve both environmental and economic aspects. Vendors could enjoy increased profit and stay Green through usage of our energy saving scheme.
    • Multiple-clouds computing security approaches: a comparative study

      Alqahtani, Hassan; Sant, Paul; University of Bedfordshire (Association for Computing Machinery, 2016-03-31)
      Relying on a single cloud as a storage service is not a proper solution for a number of reasons; for instance, the data could be captured while being uploaded to the cloud, and the data could be stolen from the cloud using a stolen ID. There are a number of approaches that have been developed in order to provide a secure data storage relying on the multiple-cloud paradigms. Through this paper we will study, and evaluate the existing approaches that have been proposed as a solution for multiple cloud storage systems in terms of security, privacy, and integrity. In addition, we will provide a brief overview of the concept of information dispersal strategies and provide an overview of state-of-the-art multiple cloud storage approaches. After that, all these approaches will be analysed with respect to pre-defined criteria/properties. Finally, we identify and highlight the obstacles/limitation in terms of usability, operational cost, and the lack of security, privacy, integrity, and access features for these approaches, which are very critical direction for future research on multiple cloud storage.
    • Security audit in mobile apps security design

      Feng, Xiaohua; Conrad, Marc (Association for Computing Machinery, 2018-11-01)
      Security design of mobile apps is very important, and it is also important that researchers consider and disseminate the continually changing requirements. For mobile application i.e. a software program that runs on a mobile phone, its design, development and management need to consider security impact. In particular, because of mobile app is running on online devices, cyber security defense is required. In this chapter, mobile app security is discussed from the initial planning and design stage to its maintenance after its launch.