Chiara Taddia

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In this paper we study in details the optimized link state routing (OLSR) protocol for ad hoc networks. In particular, we investigate its performance by focusing the attention on its energy efficiency. To have some terms of comparison the performance are compared with those of other routing schemes. Furthermore, to improve the energy efficiency by(More)
— A lot of researches are devoted to energy-save solutions in wireless sensor networks, to face their critical limited energy budget. In this paper we propose four information delivery mechanisms and we compare their relative energy impact, in order to make communications both reliable and energetic efficient. We present a parametric model to choose the(More)
The paper presents an analysis of the route acquisition process in the ad hoc on demand distance vector (AODV) routing protocol. We develop an analytical model describing the probability of realizing the route request process in a certain number of hops, taking into account some possible errors and link breaks during the path toward destination. Comparisons(More)
When systems are deployed in environments where change is the rule rather than the exception, adaptability and resilience play a crucial role in order to preserve good quality of service. This work analyses methods that can be adopted for the duty cycle measurement of sensor-originated waveforms. These methods start from the assumption that no regular(More)
We propose a new decentralized signaling protocol based on multicast and anycast communications, that substitutes the centralized tracker required by classic BitTorrent implementation. The proposed solution allows to fully exploit the decentralized data sharing among BitTorrent peers, by maintaining all its benefits, without the need of the centralized(More)
Most often more and more citizens need the possibility to exploit free Wi-Fi service available in public area. The reliable broadband network called Lepida, working in Italian Emilia-Romagna region, and the availability of a federated service of authentication have made possible to accomplish this necessity. Furthermore a new walled garden fully(More)
Large scale and high density networks of tiny sensor nodes offer promising solutions for event detection and actuating applications. In this paper we address the effect of high density of wireless sensor network performance with a specific MAC protocol, the lightweight medium access control (LMAC). We propose a power control support for the LMAC protocol to(More)