In complex online social networks, it is crucial for a service consumer to extract the trustworthiest way to a target service provider from numerous social trust paths between them. The extraction of the trustworthiest way (namely, optimal social trust path (OSTP)) with multiple end-to-end quality of trust (QoT) constraints has been proved to be NP-Complete. Heuristic algorithms with polynomial...

A secured and scalable Peer-to-Peer (P2P) energy trading platform can facilitate the integration of renewable thus contribute to building sustainable infrastructure. The decentralized architecture blockchain makes it a befitting candidate actualize an efficient P2P market. However, for dynamic blockchain-based platform, few critical aspects such as security, privacy scalability need be addresse...

The aim of this paper is to enhance the quality of Orthogonal Frequency Division Multiplexing OFDM estimation in dedicated vehicular communication transmission V2X networks. Wireless Access in Vehicular Environment WAVE as also known IEEE 802.11p represents the standard for these networks. Developing a reliable inter-vehicular V2X communication has to focus on optimizing its real performances. ...

In large-scale wireless sensor networks (WSNs), in order to enhance network security, it is crucial for a trustor node to perform social milieu oriented routing to a target a trustee node to carry out trust evaluation. This challenging social milieu oriented routing with more than one end-to-end Quality of Trust (QoT) constraint has proved to be NP-complete. Heuristic algorithms with polynomial...

Online social networks are becoming increasingly popular and are being used as the means for a variety of rich activities. This demands the evaluation of the trustworthiness between two unknown participants along a certain social trust path between them in the social network. However, there are usually many social trust paths between participants. Thus, a challenging problem is finding which so...

Heterogeneous networks (HetNets) merge different types of 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 resources and provide seamless connectivity for heterogeneous objects. Unlike other networks, hold such characteristics as heterogeneity, openness, distribution, multi-...