Browsing by Author "Wang, Haiguang"

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Is Today's End-to-End Communication Security Enough for 5G and Its Beyond?
(2022) Zhang, Jialei; Yan, Zheng; Fei, Shufan; Wang, Mingjun; Li, Tieyan; Wang, Haiguang
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Mobile and wireless communication continues its rapid development. Beyond 5G, heterogeneous networks (HetNets) will be merged with the integration of various networking technologies. Unique characteristics of such an integrated converged network cause new security challenges, such as difficulty of key agreement and theft of communication content, especially when crossing network domains happens. In order to ensure secure and reliable communications, end-to-end (E2E) communication security is highly expected, especially for cross-trust-domain communications in HetNets. Unfortunately, little existing research touches this issue and the literature lacks a deep-insight review on the current state-of-the-art. In this article, we summarize current E2E secure communication scenarios and basic techniques. We propose a number of requirements based on security threat analysis and employ them as a measure to evaluate existing works. Through review and analysis, we finally determine open issues to highlight future research directions.
A Survey on Trust Models in Heterogeneous Networks
(2022) Wang, Jie; Yan, Zheng; Wang, Haiguang; Li, Tieyan; Pedrycz, Witold
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Heterogeneous networks (HetNets) merge different types of networks into an integrated network system, which has become a hot research area in recent years towards next-generation communication networks. HetNets aim to effectively exploit network resources and provide seamless connectivity for heterogeneous objects. Unlike other networks, HetNets hold such characteristics as heterogeneity, openness, distribution, multi-domain involvement, thus are susceptible to various security threats and attacks. Traditional security approaches are not sufficiently effective in defending against them. With extensive study and practice, researchers found that trust models offer effective measures to enhance the security and reliability of a network system. However, there still lacks a comprehensive survey on the recent advances of trust models in HetNets. In this paper, we fill this gap. We first retrospect the history of HetNets research and introduce important concepts related to trust. Then, we propose a set of criteria that a sound trust model should satisfy, which can also serve as a measure to evaluate the quality of a trust model, i.e., Quality of Trust (QoT). We provide taxonomies of trust models and their applications, and continue with a thorough review on trust models in HetNets. Based on the review, a list of open issues is highlighted, and corresponding future research directions are suggested to advance the research on trustworthy HetNets.