eprintid: 3482
rev_number: 11
eprint_status: archive
userid: 328
dir: disk0/00/00/34/82
datestamp: 2019-06-16 10:16:50
lastmod: 2019-06-16 10:16:50
status_changed: 2019-06-16 10:16:50
type: article
metadata_visibility: show
creators_name: Vu Xuan, Thang
creators_name: Lei, Lei
creators_name: Chatzinotas, Symeon
creators_name: Ottersten, Bj¨orn
creators_name: Trinh Anh, Vu
creators_id: thang.vu@uni.lu
creators_id: LeiLei@gmail.com
creators_id: Chatzinotas@gmail.com
creators_id: bjorn.ottersten@uni.lu
creators_id: vuta@vnu.edu.vn
title: On The Successful Delivery Probability of
Full-Duplex Enabled Mobile Edge Caching
ispublished: inpress
subjects: Communications
subjects: ECE
subjects: isi
divisions: fac_fet
abstract: Cache hit ratio (CHR) is a common metric to evaluate the performance of an edge caching system. While CHR is efficient to measure throughput reduction gain, it fails to
guarantee user quality of experience since CHR does not capture the last-mile channel uncertainty. In this letter, we investigate a novel successful delivery probability (SDP) metric of full-duplex enabled mobile edge caching (FD-MEC) systems, defined as a probability that the user receives the requested file before a tolerable delay. Firstly, the average SDP is derived in a closed-form expression for arbitrary caching policy and network topology, taking into account the wireless fading distribution. Secondly, based on the derived SDP, a sub-optimal cache placement is proposed to maximize the average SDP, which is analytically shown to surpass both the most popular and uniform caching policies. Finally numerical results are presented to verify the accuracy of our analysis and demonstrate the effectiveness of our proposed cache placement design.
date: 2019
date_type: published
publisher: IEEE Communications Society
official_url: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4234
full_text_status: public
publication: IEEE Communication Letter
refereed: FALSE
issn: 10897798
citation:   Vu Xuan, Thang and Lei, Lei and Chatzinotas, Symeon and Ottersten, Bj¨orn and Trinh Anh, Vu  (2019) On The Successful Delivery Probability of Full-Duplex Enabled Mobile Edge Caching.  IEEE Communication Letter .    ISSN 10897798    (In Press)  
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3482/1/CL.pdf