Cellular Traffic Offloading with Optimized Compound Single-point Unicast and Cache-based Multipoint Multicast

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

2 Sitaatiot (Scopus)
45 Lataukset (Pure)

Abstrakti

We consider an optimal cache-placement-and-delivery-policy where traffic is offloaded from Single-Point Unicast (SPUC) service by using network-level Orthogonal Multipoint Multicast (OMPMC) scheme. The files are classified into two sets. The most popular files are cached at the BSs using a probabilistic approach and are served by OMPMC. The remaining files are fetched from the core network on demand and served by SPUC. Optimal compound scheme is analyzed, based on resource allocation between OMPMC and multi-antenna SPUC schemes. If a user is not able to successfully receive the requested file due to its experienced signal-to-interference-plus-noise ratio, its request is in outage. A closed-form expression is derived for the total outage probability based on stochastic geometry for the compound scheme. An optimization problem is formulated to design the caching policy for the compound scheme. The optimal solution to this problem is obtained by finding optimal cache placement, bandwidth allocation, and file classification. Simulation results show that the compound scheme outperforms other caching schemes in terms of the total outage probability.
AlkuperäiskieliEnglanti
Otsikko2022 IEEE Wireless Communications and Networking Conference (WCNC)
KustantajaIEEE
Sivut2268-2273
Sivumäärä6
ISBN (elektroninen)978-1-6654-4266-4
DOI - pysyväislinkit
TilaJulkaistu - 16 toukok. 2022
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaIEEE Wireless Communications and Networking Conference - Austin, Yhdysvallat
Kesto: 10 huhtik. 202213 huhtik. 2022

Julkaisusarja

NimiIEEE Wireless Communications and Networking Conference
ISSN (elektroninen)1558-2612

Conference

ConferenceIEEE Wireless Communications and Networking Conference
LyhennettäWCNC
Maa/AlueYhdysvallat
KaupunkiAustin
Ajanjakso10/04/202213/04/2022

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