Caching efficiency enhancement at wireless edges with concerns on user’s quality of experience
Content caching is a promising approach to enhancing bandwidth utilization and minimizing delivery delay for new-generation Internet applications. The design of content caching is based on the principles that popular contents are cached at appropriate network edges in order to reduce transmission de...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/90292 http://hdl.handle.net/10220/48483 |
| _version_ | 1811694016081690624 |
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| author | Li, Feng Lam, Kwok-Yan Wang, Li Na, Zhenyu Liu, Xin Pan, Qing |
| author2 | School of Computer Science and Engineering |
| author_facet | School of Computer Science and Engineering Li, Feng Lam, Kwok-Yan Wang, Li Na, Zhenyu Liu, Xin Pan, Qing |
| author_sort | Li, Feng |
| collection | NTU |
| description | Content caching is a promising approach to enhancing bandwidth utilization and minimizing delivery delay for new-generation Internet applications. The design of content caching is based on the principles that popular contents are cached at appropriate network edges in order to reduce transmission delay and avoid backhaul bottleneck. In this paper, we propose a cooperative caching replacement and efficiency optimization scheme for IP-based wireless networks. Wireless edges are designed to establish a one-hop scope of caching information table for caching replacement in cases when there is not enough cache resource available within its own space. During the course, after receiving the caching request, every caching node should determine the weight of the required contents and provide a response according to the availability of its own caching space. Furthermore, to increase the caching efficiency from a practical perspective, we introduce the concept of quality of user experience (QoE) and try to properly allocate the cache resource of the whole networks to better satisfy user demands. Different caching allocation strategies are devised to be adopted to enhance user QoE in various circumstances. Numerical results are further provided to justify the performance improvement of our proposal from various aspects. |
| first_indexed | 2024-10-01T07:00:52Z |
| format | Journal Article |
| id | ntu-10356/90292 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:00:52Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/902922020-03-07T11:49:01Z Caching efficiency enhancement at wireless edges with concerns on user’s quality of experience Li, Feng Lam, Kwok-Yan Wang, Li Na, Zhenyu Liu, Xin Pan, Qing School of Computer Science and Engineering Content Caching Wireless Edges DRNTU::Engineering::Computer science and engineering Content caching is a promising approach to enhancing bandwidth utilization and minimizing delivery delay for new-generation Internet applications. The design of content caching is based on the principles that popular contents are cached at appropriate network edges in order to reduce transmission delay and avoid backhaul bottleneck. In this paper, we propose a cooperative caching replacement and efficiency optimization scheme for IP-based wireless networks. Wireless edges are designed to establish a one-hop scope of caching information table for caching replacement in cases when there is not enough cache resource available within its own space. During the course, after receiving the caching request, every caching node should determine the weight of the required contents and provide a response according to the availability of its own caching space. Furthermore, to increase the caching efficiency from a practical perspective, we introduce the concept of quality of user experience (QoE) and try to properly allocate the cache resource of the whole networks to better satisfy user demands. Different caching allocation strategies are devised to be adopted to enhance user QoE in various circumstances. Numerical results are further provided to justify the performance improvement of our proposal from various aspects. Published version 2019-05-30T04:04:38Z 2019-12-06T17:44:58Z 2019-05-30T04:04:38Z 2019-12-06T17:44:58Z 2018 Journal Article Li, F., Lam, K.-Y., Wang, L., Na, Z., Liu, X., & Pan, Q. (2018). Caching efficiency enhancement at wireless edges with concerns on user’s quality of experience. Wireless Communications and Mobile Computing, 2018, 1680641-. doi:10.1155/2018/1680641 1530-8669 https://hdl.handle.net/10356/90292 http://hdl.handle.net/10220/48483 10.1155/2018/1680641 en Wireless Communications and Mobile Computing © 2018 Feng Li et al.This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 11 p. application/pdf |
| spellingShingle | Content Caching Wireless Edges DRNTU::Engineering::Computer science and engineering Li, Feng Lam, Kwok-Yan Wang, Li Na, Zhenyu Liu, Xin Pan, Qing Caching efficiency enhancement at wireless edges with concerns on user’s quality of experience |
| title | Caching efficiency enhancement at wireless edges with concerns on user’s quality of experience |
| title_full | Caching efficiency enhancement at wireless edges with concerns on user’s quality of experience |
| title_fullStr | Caching efficiency enhancement at wireless edges with concerns on user’s quality of experience |
| title_full_unstemmed | Caching efficiency enhancement at wireless edges with concerns on user’s quality of experience |
| title_short | Caching efficiency enhancement at wireless edges with concerns on user’s quality of experience |
| title_sort | caching efficiency enhancement at wireless edges with concerns on user s quality of experience |
| topic | Content Caching Wireless Edges DRNTU::Engineering::Computer science and engineering |
| url | https://hdl.handle.net/10356/90292 http://hdl.handle.net/10220/48483 |
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