IBP Based Caching Strategy in D2D
| Autor: | Yan Liu, Jian-Zhen Luo, Jun Cai, Xiao-ping Wu, Chun Shan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Computer science
02 engineering and technology lcsh:Technology lcsh:Chemistry Base station caching 0202 electrical engineering electronic engineering information engineering General Materials Science Network performance Instrumentation lcsh:QH301-705.5 Fluid Flow and Transfer Processes business.industry lcsh:T Process Chemistry and Technology Node (networking) General Engineering 020206 networking & telecommunications Spectral efficiency Device to Device Telecommunications network lcsh:QC1-999 Computer Science Applications Backhaul (telecommunications) lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 Indian Buffet Process Key (cryptography) 020201 artificial intelligence & image processing business lcsh:Engineering (General). Civil engineering (General) 5G lcsh:Physics Computer network |
| Zdroj: | Applied Sciences, Vol 9, Iss 12, p 2416 (2019) Applied Sciences Volume 9 Issue 12 |
| ISSN: | 2076-3417 |
| Popis: | Device to Device (D2D) communication is a key technology in 5th generation wireless systems to increase communication capacity and spectral efficiency. Applying caching into D2D communication networks, the device can retrieve content from other devices by establishing D2D communication links. In this way, the backhaul traffic can be significantly reduced. However, most of the existing caching schemes in D2D are proactive caching, which cannot satisfy the requirement of real-time updating. In this paper, we propose an Indian Buffet Process based D2D caching strategy (IBPSC). Firstly, we construct a geographical D2D communication network to provide high quality D2D communications according to physical closeness between devices. Then devices are divided into several social communities. Devices are ranked by their node importance to community in each community. The base station makes caching decisions for devices according to contrition degree. Experimental results show that IBPSC achieves best network performance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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