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Proactively pushing content to users is a promising way of coping with the explosively growing traffic demand of next-generation mobile networks. However, it is unclear whether content pushing can improve the energy efficiency of delay-constrained wireless communication systems over fading channels. With pushing, the energy consumption can be reduced due to the extended transmission time duration...
The rapid growth of video in wireless networks is a crucial issue to be addressed by content providers. Nowadays, an emerging and promising trend is the development of solutions aimed at maximizing the quality of experience (QoE) of end users. However, the prediction of the QoE perceived by users in different conditions remains a major challenge. In this paper, we propose a two-layer hierarchical...
Voice over IP (VoIP) has become the fastest growing wireless alternative to conventional telephony service by way of ongoing deployment of WLAN hotspots and even powerful WiMAX coverage. Resulting from the wired/wireless combined best-effort based heterogeneous IP networks which provide more fluctuation in available bandwidth and end-to-end delay, the performance of VoIP quality, especially using...
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