Georgios Koltsidas

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Game theory has been used for decades in fields of science such as economics and biology, but recently it was used to model routing and packet forwarding in wireless ad-hoc and sensor networks. However, the clustering problem, related to self-organization of nodes into large groups, has not been studied under this framework. In this work our objective is to(More)
Vehicular Ad Hoc Networks (VANETs) have attracted the interest of the scientific community, since many issues remain open, especially in the research area of routing techniques. In this work we propose a new position-based routing algorithm called Junction-Based Routing (or JBR). The algorithm makes use of selective greedy forwarding up to the node that is(More)
Multicast communications in wireless networks have attracted the interest of the scientific community, since many issues remain open. In this framework, our letter proposes two novel hybrid automatic repeat request (HARQ) algorithms for multicast communications in the UMTS radio link control (RLC) layer. The proposed algorithms exploit the channel(More)
In this letter we introduce a new routing technique designed exclusively for VANETs and present some initial performance results. The algorithm was named Junction-based Multipath Source Routing (JMSR). Its main characteristics comprise the multiple routes towards the destination, the junction-centric logic and the adoption of source routing mechanisms.
The area of mobile ad hoc networks has recently attracted much scientific interest, as a very appealing research area with many open issues and still unsolved problems. One of the main issues that concerns researchers is the development of routing algorithms that present good performance and face a hostile environment. Many routing protocols have been(More)
  • José Ignacio Moreno Novella, Rafael Asorey Cacheda, +7 authors Javier González Castaño
  • 2007
Internet development and an ever-increasing demand for bandwidth are boosting the market for satellite solutions. Technological progress leading to new satellite capabilities and the availability of bandwidth at lower cost is
An ad-hoc network is a network whose particular characteristics include absence of any kind of infrastructure, dynamic topology and limited resources. Up to day, several routing protocols have been proposed to face such a hostile environment. These solutions usually provide to the sources of data flows with single valid paths towards their destinations.(More)
Mobile Ad hoc Networks (MANETs) are networks with dynamic topology and limited resources, where routing is highly correlated to their performance. Most routing algorithms focus on the establishment of a single path between the source and the destination. However, multiple routes have been proven beneficial, when used either for load balancing or as backup(More)