QoE based random sleep-awake scheduling in heterogeneous cellular networks

Farrokhi, Abbas and Erçetin, Özgür (2016) QoE based random sleep-awake scheduling in heterogeneous cellular networks. In: IEEE Wireless Communications and Networking Conference (WCNC 2016), Doha, Qatar

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In this paper, we investigate an optimal resource on-off switching framework that minimizes the energy consumption of a heterogeneous cellular network. Specifically, our goal is to minimize the energy consumption of the cellular network while satisfying a desired level of buffer starvation probability, which can be considered as a quality of experience (QoE) term. For an ON/OFF bursty arrival process, we introduce recursive equations to obtain the buffer starvation probability of a mobile device (MD) for streaming services. The MD is in the coverage area of a femtocell base station (FBS) which is implemented at the cell edge of a macrocell base station (MBS), and when its buffer gets empty, the media player of the MD restarts the service after a certain amount of packets are prefetched (this event is known as start-up delay in the literature). Numerical simulations illustrate how our system significantly reduces the overall energy consumption of the network while guaranteeing a target starvation probability in comparison to the case where the MD is covered only by one MBS.
Item Type: Papers in Conference Proceedings
Uncontrolled Keywords: quality of experience, Energy efficiency, heterogeneous cellular network, sleep/awake strategy, buffer starvation, start-up delay
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Electronics
Faculty of Engineering and Natural Sciences
Depositing User: Özgür Erçetin
Date Deposited: 11 Nov 2016 11:29
Last Modified: 26 Apr 2022 09:23
URI: https://research.sabanciuniv.edu/id/eprint/29713

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