Balancing wireless data broadcasting and information hovering for efficient information dissemination
ΣυγγραφέαςLiaskos, Christos K.
Papadimitriou, Georgios I.
SourceIEEE Transactions on Broadcasting
Google Scholar check
MetadataΕμφάνιση πλήρους εγγραφής
Wireless data broadcasting is an efficient, bandwidth preserving way of data dissemination. However, as the amount of data increases, the waiting time of the clients becomes unacceptably high. The present paper proposes the combination of optimal wireless broadcasting and information hovering, as an effective means of performance improvement in vehicular networks with locality of demand. While state-of-the-art works exploit user collaboration only as a means of wireless coverage extension, the proposed scheme proposes parallel dissemination through broadcasting and user networking over the whole studied area. Optimal, periodic broadcast scheduling is adopted at the highest tier for data dissemination. At the lowest tier, users can exploit information hovering around selected anchoring points, in order to retrieve data faster than their next scheduled broadcast. The issue of sharing the dissemination load optimally between the broadcasting and the hovering subsystems is mapped to the classic pull-push balancing problem. Through analysis, the long-standing optimal cut-off point balancing method is shown to be suboptimal, and a new method is proposed which achieves lower client serving time in any of the cases. Simulation results in realistic VANETs show that the proposed dissemination scheme surpasses state-of-the-art works in terms of efficiency and client satisfaction. © 2011 IEEE.
Showing items related by title, author, creator and subject.
Panayides, Andreas S.; Pattichis, Marios S.; Pattichis, Constantinos S.; Pitsillides, Andreas (2011)The wireless transmission of medical video is expected to see significant growth in the coming years. This is primarily due to the expected availability of significant bandwidth in the next-generation of wireless communications ...
A novel communication paradigm for high capacity and security via programmable indoor wireless environments in next generation wireless systems Liaskos, Christos K.; Nie, Shuai; Tsioliaridou, Ageliki; Pitsillides, Andreas; Ioannidis, Sotiris; Akyildiz, Ian (2019)Wireless communication environments comprise passive objects that cause performance degradation and eavesdropping concerns due to anomalous scattering. This paper proposes a new paradigm, where scattering becomes ...
Mobile agents for wireless computing: The convergence of wireless computational models with mobile-agent technologies Spyrou, Christiana; Samaras, George S.; Pitoura, Evaggelia 1967-; Evripidou, Paraskevas (2004)Wireless mobile computing breaks the stationary barrier and allows users to compute and access information from anywhere and at anytime. However, this new freedom of movement does not come without new challenges. The mobile ...