Authors: Zaheer Khan Athanasios V Vasilakos Bidushi Barua Shahriar Shahabuddin Hamed Ahmadi
Publish Date: 2015/09/29
Volume: 22, Issue: 6, Pages: 1961-1983
Abstract
In this tutorial paper we discuss and compare cooperative content delivery CCD techniques that exploit multiple wireless interfaces available on mobile devices to efficiently satisfy the already massive and rapidly growing user demand for content The discussed CCD techniques include simultaneous use of wireless interfaces opportunistic use of wireless interfaces and aggregate use of wireless interfaces We provide a taxonomy of different ways in which multiple wireless interfaces are exploited for CCD and also discuss the real measurement studies that evaluate the content delivery performance of different wireless interfaces in terms of energy consumption and throughput We describe several challenges related to the design of CCD methods using multiple interfaces and also explain how new technological developments can help in accelerating the performance of such CCD methods The new technological developments discussed in this paper include wireless interface aggregation network caching and the use of crowdsourcing We provide a case study for selection of devices in a group for CCD using multiple interfaces We consider this case study based on the observation that in general different CCD users can have different link qualities in terms of transmit/receive performance and selection of users with good link qualities for CCD can accelerate the content delivery performance of wireless networks Finally we discuss some open research issues relating to CCD using multiple interfaces
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