Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Georgios S. Paschos"'
Publikováno v:
Communications, Vol 6, Iss 4, Pp 5-12 (2004)
This paper proposes a new Admission Control strategy with Quality of Service (QoS) preservation for GSM networks. System initiated handover calls are used in the central cell in order to decentralize the traffic and redistribute it throughout the who
Externí odkaz:
https://doaj.org/article/4e893751458c4a6d9c2eb9d9e3578ede
Publikováno v:
Advances in Multimedia, Vol 2007 (2007)
The main contribution of this work is to compare and enhance known methods for performance analysis of the IEEE 802.11e MAC layer, such as the use of Markov chains, queuing theory, and probabilistic analysis. It is the first paper that bases its outp
Externí odkaz:
https://doaj.org/article/ceea093c45ef4ffcb0491e756d42f6ec
Autor:
Theodoros Karagkioules, Georgios S. Paschos, Nikolaos Liakopoulos, Attilio Fiandrotti, Dimitrios Tsilimantos, Marco Cagnazzo
Publikováno v:
ACM Transactions on Multimedia Computing, Communications, and Applications. 18:1-22
In this paper, we propose a novel algorithm for video bitrate adaptation in HTTP Adaptive Streaming (HAS), based on online learning. The proposed algorithm, named Learn2Adapt (L2A) , is shown to provide a robust bitrate adaptation strategy which, unl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b99a2a67b46a99508ba451c6cac73c63
https://doi.org/10.1145/3460819
https://doi.org/10.1145/3460819
Publikováno v:
IEEE Transactions on Wireless Communications, 20(7)
The advent of elastic Content Delivery Networks (CDNs) enable Content Providers (CPs) to lease cache capacity on demand and at different cloud and edge locations in order to enhance the quality of their services. This paper addresses key challenges i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::936e336f88f628ac0ff6d831b630f638
https://doi.org/10.1109/twc.2021.3056503
https://doi.org/10.1109/twc.2021.3056503
Publikováno v:
IEEE Transactions on Information Theory. 66:4530-4546
The performance of existing coded caching schemes is sensitive to the worst channel quality, a problem which is exacerbated when communicating over fading channels. In this paper, we address this limitation in the following manner: in short-term, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e74be4903efd61b799f04ffd25ed693
https://doi.org/10.1109/tit.2020.2998104
https://doi.org/10.1109/tit.2020.2998104
Publikováno v:
IEEE/ACM Transactions on Networking. 28:625-638
We study the problem of wireless edge caching when file popularity is unknown and possibly non-stationary. A bank of $J$ caches receives file requests and a utility is accrued for each request depending on the serving cache. The network decides dynam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51ebc59bb60a20c219e0f0a09c7ab9e6
https://doi.org/10.1109/tnet.2020.2968424
https://doi.org/10.1109/tnet.2020.2968424
Publikováno v:
IEEE/ACM Transactions on Networking. 27:1683-1695
We study the user association problem in the context of dense networks, where standard adaptive algorithms become ineffective. This paper proposes a novel data-driven technique leveraging the theory of robust optimization. The main idea is to predict
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb3ddc339c5d9cdd1a5b9373df435edd
https://doi.org/10.1109/tnet.2019.2930231
https://doi.org/10.1109/tnet.2019.2930231
Autor:
Livia Elena Chatzieleftheriou, Iordanis Koutsopoulos, Georgios S. Paschos, Apostolos Destounis
Publikováno v:
INFOCOM
We learn optimal user association policies for traffic from different locations to Access Points(APs), in the presence of unknown dynamic traffic demand. We aim at minimizing a broad family of $\alpha$-fair cost functions that express various objecti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::587cf2d119b5eeb4913f500dbf933296
http://arxiv.org/abs/2101.06495
http://arxiv.org/abs/2101.06495
Unmanned Aerial Vehicles (UAVs) are poised to revolutionize communications. Utilizing their flexibility and fast deployment, we can deliver content in congested areas or provide services in areas without infrastructure. In this paper, we consider a U
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2934220862b3dae19e766280fae3ee0
Publikováno v:
IEEE/ACM Transactions on Networking. 26:1577-1590
Software-defined network (SDN) controllers include mechanisms to globally reconfigure the network in order to respond to a changing environment. As demands arrive or leave the system, the globally optimum flow configuration changes over time. Althoug
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecfe92bbef1377c0dec958eac9b4243b
https://doi.org/10.1109/tnet.2018.2845463
https://doi.org/10.1109/tnet.2018.2845463