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Cuibo Yu 보안공학연구지원센터 2016 International Journal of Future Generation Communi Vol.9 No.1
Cell selection/reselection and handover (HO) are important mobility features and challenges of wireless cellular system. When network topology transforms from macro-only to heterogeneous network (HetNet) deployment, the imbalance of transmitted power and coverage area of different kinds of cells in HetNet introduce more challenges to those two important processes. In this paper, we investigate and elaborate some new algorithms and strategies to meet those challenges. On cell selection/reselection, there are two directions in associating more UEs with small cells, one is RSRP-based by introducing a empirical bias to expand small cells’ coverage area, the other is fairness-based to maximize the system throughput and usage of resources. As to more important and difficult HO process, the proposed methods include optimizing the parameters of event A3, handling time to trigger(TTT), optimizing HO process and utilizing inter-cell interference coordination algorithm(ICIC) etc, to maximize the usage of capability of deployed small cell. The presented new algorithms and strategies promise specific performance improvement with introducing receivable time and computing complexity.
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Research of Online Reviews Deviation for Sales in B2C Plafform
Wenjun Liu,Lin Ding,Cuibo Wang 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.8
This research focuses on online reviews deviation in B2C platform, and tries to analyze the phenomenon that shops which have large sales volume are lowly recommended compared with the average in Tmall. After verifying the validity of online reviews, we find out that the consumers' sensibility for negative comments become weaker. And the sellers’ sincerity that reflected by their replies to negative comments have little influence on sales. Only the number of total comments and positive comments can obviously influence on sales . Shops, in B2C platform, just concern about taking part in sales promotion to create hot products, instead of devoting to the quality of service. B2C platform whose primary business is selling entrance of users flow, prefers to protect large sellers, and the unreasonable rules in online reviews is the main reason for partial failure in the influence of reviews to sales.
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