Abstract
Boosted by the visions of 5G technology, along with the proliferation of IoT devices, we are lucky to bear witness of a tremendous shift within the Internet, mobile computing, and ubiquitous applications pervading people’s daily life. To catch up with the speed of this evolution, new architectures, which enable us to decentralize and focus more on the edge of the network, have to show up. To effectively address the record-breaking growth of data traffic, we also have to come up with new caching mechanisms in coping with users’ demanding QoE along with other aspects, such as data privacy and energy efficiency. In this paper, we intend to begin with reviews on edge caching. First, we make a detailed overview of mobile edge caching. Then, we move on to the QoS and QoE part, discussing the related literature concerning these topics. We then start to address factors concerning edge caching and QoE. Four cutting-edge applications utilizing these technologies with challenges posed by current network architectures are made clear. Our paper closes with some future research directions.
Highlights
Fast-growing development of the Internet along with the ubiquitous IoT devices has led to a skyrocketing growth of traffic via mobile communications over the past decade
We summarized the literature we encountered involving numerous properties of edge caching with Quality of Service (QoS) and Quality of Experience (QoE)
Studies we quoted are compared in different aspects with notable merits within (ii) We manage to brief works related to edge caching and comparison between Quality of Service (QoS) and Quality of Experience (QoE), respectively, to further elaborate the significance of enhancing QoE in current network architecture (iii) Caching process is divided into four stages just as four main focuses of QoE to fully analyze each corresponding disadvantage and offer potential countermeasures (iv) Four novel applications and four crucial challenges are categorized via different focus of their requested services
Summary
Fast-growing development of the Internet along with the ubiquitous IoT devices has led to a skyrocketing growth of traffic via mobile communications over the past decade. We think a comprehensive summary with detailed specifications would still be of benefit to others in this field To fill this gap, we summarized the literature we encountered involving numerous properties of edge caching with QoS and QoE. Studies we quoted are compared in different aspects with notable merits within (ii) We manage to brief works related to edge caching and comparison between Quality of Service (QoS) and Quality of Experience (QoE), respectively, to further elaborate the significance of enhancing QoE in current network architecture (iii) Caching process is divided into four stages just as four main focuses of QoE to fully analyze each corresponding disadvantage and offer potential countermeasures (iv) Four novel applications and four crucial challenges are categorized via different focus of their requested services.
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