H. B. Mahmoodi, M. Salehi and A. Tölli, "Non-Symmetric Coded Caching for Location-Dependent Content Delivery," 2021 IEEE International Symposium on Information Theory (ISIT), 2021, pp. 712-717, doi: 10.1109/ISIT45174.2021.9518026
Non-symmetric coded caching for location-dependent content delivery
|Author:||Mahmoodi, Hamidreza Bakhshzad1; Salehi, Mohammad Javad1; Tölli, Antti1|
1Center for Wireless Communications, University of Oulu, 90570 Finland
|Online Access:||PDF Full Text (PDF, 0.3 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2021102051676
Institute of Electrical and Electronics Engineers,
|Publish Date:|| 2021-10-20
Immersive viewing is emerging as the next interface evolution for human-computer interaction. A truly wireless immersive application necessitates immense data delivery with ultra-low latency, raising stringent requirements for next-generation wireless networks. A potential solution for addressing these requirements is through the efficient usage of in-device storage and computation capabilities. This paper proposes a novel location-based coded cache placement and delivery scheme, which leverages the nested code modulation (NCM) to enable multi-rate multicasting transmission. To provide a uniform quality of experience in different network locations, we formulate a linear programming cache allocation problem. Next, based on the users’ spatial realizations, we adopt an NCM based coded delivery algorithm to efficiently serve a distinct group of users during each transmission. Numerical results demonstrate that the proposed location-based delivery method significantly increases transmission efficiency compared to state of the art.
|Pages:||712 - 717|
2021 IEEE International Symposium on Information Theory, ISIT 2021, 12-20 July 2021, Melbourne, Australia
IEEE International Symposium on Information Theory
|Type of Publication:||
A4 Article in conference proceedings
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
This work was supported by the Academy of Finland under grants no. 319059 (Coded Collaborative Caching for Wireless Energy Efficiency) and 318927 (6Genesis Flagship).
|Academy of Finland Grant Number:||
319059 (Academy of Finland Funding decision)
318927 (Academy of Finland Funding decision)
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