Page 9 - ITU Journal Future and evolving technologies – Volume 2 (2021), Issue 2

ITU Journal on Future and Evolving Technologies, Volume 2 (2021), Issue 2

LIST OF ABSTRACTS

Seamless communication techniques in mobile cloud computing: A

survey

Pages 1-20
Pagoui Lagabka Constant, Ahyoung Lee, Kun Suo, Donghyun Kim

Achieving seamless communication and smooth service provision between the cloud and end user's
mobile device is one of the main challenges existing in mobile cloud environments. Mobile Cloud
Computing (MCC) allows cloud environments to mitigate resource limitation problems for mobile
devices. The most popular mobile devices such as smartphones, autonomous vehicles, drones, and other
smart electronic equipment are in constant motion and frequently change their point of connection (base
station or edge) to mobile computing networks. In these situations of mobility, the data being
transmitted, and the services being provided to the device should not be interrupted as the proper
function of the device depends on these services. Applications that rely heavily on data and services
stored in the cloud environment should be available even when the device has moved from one pole to
another. Various existing generic surveys emphasize important solutions to some of the challenges
faced in MCC. Different solutions were proposed to achieve seamless communication in MCC,
presenting the taxonomy of the interworking and mobility techniques and their possibilities. However,
they have not provided a clear evaluation of MCC techniques for achieving seamless communication
and service provision, and have not taken into consideration current technological advances such as 5G,
femtocell, etc. In this paper, we provide a survey of the different solutions proposed to achieve seamless
communication in MCC by taking current technological advances into account. Furthermore, some
shortcomings associated with the presented methods are outlined, along with the current issues and
research challenges faced in MCC. However, for the purposes of data protection and security,
previously proposed schemes already achieve the goal of protecting users' attribute privacy and they
have the same access policy; some can even achieve full security, but they are just limited in decryption
efficiency.
View Article

Clustering-based device-to-device discovery and content delivery in
wireless networks

Pages 21-33
Tolga Girici, Ahmet Cihat Kazez

Device-to-device (D2D) cache placement and content delivery is a recent technology that exploits idle
memory capacity of mobile devices and promises to fulfill users' content needs with very low delay and
without using the scarce cellular network capacity. Recent literature on D2D caching mostly
concentrated on optimal cache placement and mostly disregarded the required discovery mechanisms
and the accompanying overhead. In this work we propose a clustering-based procedure that is used to
cache content at the helper nodes along with advertisement and discovery procedures for content
delivery. We implement a Long Term Evolution (LTE)-based simulation setup to evaluate the proposed
schemes. Numerical results reveal that the clustering-based user and content discovery significantly
improves cellular offloading and reduces the discovery overhead with a minimal sacrifice from delay.
View Article

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