Abstract
Anticipating multimedia file requests via caching at the small cell base stations (SBSs) has emerged as a promising technique for enhancing the quality-of-service (QoS) of cellular user equipments (UEs). Nevertheless, in traditional caching approaches, files are retrieved from evolved packet core (EPC) of the network, and without coordination among SBSs, which introduces new challenges of content duplication and unbalanced traffic load on the backhaul. In this paper, we propose a collaborative framework in which the SBSs can access files from the caches of other SBSs within the same network domain (i.e., connected to the same service gateway). We design a cost model for the content retrieval of contents across SBSs and from the EPC, and we propose a cost-aware decentralized algorithm, based on which the SBSs devise individual caching strategies (i.e., which files to cache, and from where). Simulation results show that the proposed cooperative caching scheme yields significant gains in terms of in-network content availability, reaching up to 21% improvement compared to a traditional approaches based on geographical distribution of the UEs.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of the 2014 1st International Conference on 5G for Ubiquitous Connectivity, 5GU 2014 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 128-133 |
| Number of pages | 6 |
| ISBN (Print) | 9781631900556 |
| DOIs | |
| State | Published - Feb 11 2015 |
| Event | 2014 1st International Conference on 5G for Ubiquitous Connectivity, 5GU 2014 - Levi, Finland Duration: Nov 26 2014 → Nov 27 2014 |
Other
| Other | 2014 1st International Conference on 5G for Ubiquitous Connectivity, 5GU 2014 |
|---|---|
| Country | Finland |
| City | Levi |
| Period | 11/26/14 → 11/27/14 |
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ASJC Scopus subject areas
- Computer Networks and Communications
- Computer Science Applications
Cite this
In-network caching and content placement in cooperative small cell networks. / Pantisano, Francesco; Bennis, Mehdi; Saad, Walid; Debbah, Merouane.
Proceedings of the 2014 1st International Conference on 5G for Ubiquitous Connectivity, 5GU 2014. Institute of Electrical and Electronics Engineers Inc., 2015. p. 128-133 7041042.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - In-network caching and content placement in cooperative small cell networks
AU - Pantisano, Francesco
AU - Bennis, Mehdi
AU - Saad, Walid
AU - Debbah, Merouane
PY - 2015/2/11
Y1 - 2015/2/11
N2 - Anticipating multimedia file requests via caching at the small cell base stations (SBSs) has emerged as a promising technique for enhancing the quality-of-service (QoS) of cellular user equipments (UEs). Nevertheless, in traditional caching approaches, files are retrieved from evolved packet core (EPC) of the network, and without coordination among SBSs, which introduces new challenges of content duplication and unbalanced traffic load on the backhaul. In this paper, we propose a collaborative framework in which the SBSs can access files from the caches of other SBSs within the same network domain (i.e., connected to the same service gateway). We design a cost model for the content retrieval of contents across SBSs and from the EPC, and we propose a cost-aware decentralized algorithm, based on which the SBSs devise individual caching strategies (i.e., which files to cache, and from where). Simulation results show that the proposed cooperative caching scheme yields significant gains in terms of in-network content availability, reaching up to 21% improvement compared to a traditional approaches based on geographical distribution of the UEs.
AB - Anticipating multimedia file requests via caching at the small cell base stations (SBSs) has emerged as a promising technique for enhancing the quality-of-service (QoS) of cellular user equipments (UEs). Nevertheless, in traditional caching approaches, files are retrieved from evolved packet core (EPC) of the network, and without coordination among SBSs, which introduces new challenges of content duplication and unbalanced traffic load on the backhaul. In this paper, we propose a collaborative framework in which the SBSs can access files from the caches of other SBSs within the same network domain (i.e., connected to the same service gateway). We design a cost model for the content retrieval of contents across SBSs and from the EPC, and we propose a cost-aware decentralized algorithm, based on which the SBSs devise individual caching strategies (i.e., which files to cache, and from where). Simulation results show that the proposed cooperative caching scheme yields significant gains in terms of in-network content availability, reaching up to 21% improvement compared to a traditional approaches based on geographical distribution of the UEs.
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U2 - 10.4108/icst.5gu.2014.258230
DO - 10.4108/icst.5gu.2014.258230
M3 - Conference contribution
SN - 9781631900556
SP - 128
EP - 133
BT - Proceedings of the 2014 1st International Conference on 5G for Ubiquitous Connectivity, 5GU 2014
PB - Institute of Electrical and Electronics Engineers Inc.
ER -