Browse > Article
http://dx.doi.org/10.7840/kics.2016.41.7.789

Wireless Caching Algorithm Based on User's Context in Smallcell Environments  

Jung, Hyun Ki (Ajou University Department of Electrical and Computer Engineering)
Jung, Soyi (Ajou University Department of Electrical and Computer Engineering)
Lee, Dong Hak (Ajou University Department of Electrical and Computer Engineering)
Lee, Seung Que (Electronics and Telecommunications Research Institute)
Kim, Jae-Hyun (Ajou University Department of Electrical and Computer Engineering)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.41, no.7, 2016 , pp. 789-798 More about this Journal
Abstract
In this paper, we propose a cache algorithm based on user's context for enterprise/urban smallcell environments. The smallcell caching method is to store mobile users' data traffic at a storage which is equipped in smallcell base station and it has an effect of reducing core networks traffic volume. In our algorithm, contrary to existing smallcell cache algorithms, the cache storage is equipped in a edge server by using a concept of the Mobile Edge Computing. In order to reflect user's characteristics, the edge server classifies users into several groups based on user's context. Also the edge server changes the storage size and the cache replacement frequency of each group to improve the cache efficiency. As the result of performance evaluation, the proposed algorithm can improve the cache hit ratio by about 11% and cache efficiency by about 5.5% compared to the existing cache algorithm.
Keywords
Smallcell Cache; Local Cache; User's Context; Offloading; Mobile Edge Computing;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Y. K. Kim, S. H. Lee, and Y. J. Kim, "Trends on 5G communications," ETRI Electron. and Telecommun. Trends, vol. 30, no. 1, pp. 1-11, Feb. 2015.
2 Samsung Electronics, 5G Vision White Paper, 2015.
3 Cisco white paper, Cisco Visual Networking Index: Global Mobile Data Traffic Forecast Update, 2014-2019, Feb. 2015.
4 N. H. Sung, Y. J. Choi, and J. W. Jang, "Joint operation of ABS with power control and derivation of an effective ABS ratio for LTE hetnet environments," J. KICS, vol. 40, no. 12, pp. 2381-2388, Dec. 2015.   DOI
5 Y. Jang, E. Cho, and E. Hong, "Effect of interference mitigation technique and performance analysis for small cell in homogeneous networks," J. KICS, vol. 39C, no. 10, pp. 937-945, Oct. 2014.   DOI
6 T. Wang, L. Song, and Z. Han, "Dynamic femtocaching for mobile users," in Proc. WCNC 2015, pp. 861-865, New Orleans, LA, Mar. 2015.
7 J. N. Shim, B. Y. Min, K. Kim, and D. K. Kimg "Advanced femto-caching file placement technique for overlapped helper coverage," in Proc. VTC 2014 Spring, May 2014.
8 M. S. ElBamby, M. Bennis, and M Latva-aho, "Content-aware user clustering and caching in wireless small cell networks," in Proc. ISWCS 2014, pp. 945-949, Barcelona, Spain, Aug. 2014.
9 Z. Su and Q. Xu, "Contents distribution over content centric mobile social networks in 5G," IEEE Commun. Mag., vol. 53, no. 6, pp. 66-72, Jun. 2015.   DOI
10 Q. Xing, Y. Li, J. Wang, and Y, Han, "A user-relationship-based cache replacement strategy for mobile social network," in Proc. 2015 Int. Conf. Frontier of Comput. Sci. and Technol., Mar. 2015.
11 S. Y. Jung and J. H. Kim, "Caching algorithm for core network offloading in smallcell environment," J. IEIE, vol. 52, Mar. 2015.
12 S. Han, H. Park, and T. Kwon, "Shelf-life time based cache replacement policy suitable for web environment," J. KICS, vol. 40, no. 6, pp. 1091-1101, Jun. 2016.
13 A. Balamash and M. Krunz, "An overview of web caching replacement algorithms," IEEE Commun. Surveys & Tuts., pp. 44-56, 2004.
14 G. Orsini, D. Bade, and W. Lamersdorf, "Computing at the mobile edge: Designing elastic android applications for computation offloading," in Proc. WMNC 2015, pp. 112-119, Munich, Germany, Oct. 2015.
15 S. Nunna, A, Kousaridas, M. Ibrahim, and M. Dillinger, "Enabling real-time context aware collaboration through 5G and mobile edge computing," in Proc. ITNG 2015, pp. 601-605, Las Vegas, NV, Apr. 2015.
16 ETSI, Mobile-edge computing-introductory technical white paper, Sept. 2014.
17 Small Cell Forum Release 1 Document 046.01.01, Small Cell Services, Feb. 2013.
18 Naver, https://naver.com
19 INTERNET TREND, http://internettrend.co.kr/trendForward.tsp