Search results for "HWM"
showing 3 items of 3 documents
Amphibians and reptiles as palaeonvironmental proxies during the Late Pleistocene (MIS3): The case of Stratigraphic Unit V of El Salt, Alcoi, Spain
2021
The locality of El Salt (Alcoi, Spain) is a key site for understanding the extirpation of Neanderthals in the eastern part of Iberia. In this paper, we analyse an assemblage of amphibians and reptiles from Stratigraphic Unit V (45.2 ± 3.4 ka to 44.7 ± 3.4 ka), which corresponds to one of the last regional records of Neanderthals, to improve knowledge of the palaeoecology and palaeoclimate of this event. The assemblage comprises three anurans (Pelodytes sp., Alytes obstetricans, and Epidalea calamita), two lizards (Lacertidae indet. and Chalcides bedriagai), and five snakes (Colubridae indet., Coronella sp., Coronella sp./Zamenis sp., Natrix maura, and Vipera latastei). Palaeoclimatic recons…
A new Media Access Control layer Quality of Service multicast scheme for IEEE 802.11s based wireless mesh networks
2014
Inderscience Publishers; International audience; We propose a new Media Access Control (MAC) layer enabling Quality of Service (QoS) multicast scheme for IEEE 802.11s networks, where a unicast routing protocol called HWMP (Hybrid Wireless Mesh Protocol) is defined. The HWMP protocol is more adapted for best effort traffic, that's why its usage is not suitable for real time multimedia applications. The goal of our proposed mechanism is to take into account multicast communication under QoS constraints for the IEEE 802.11s mesh networks where no QoS multicasting has been defined. Our multicasting scheme handles QoS guarantee for real time applications. Indeed, our scheme is based on finding t…
Aportaciones de la herpetofauna al conocimiento de la paleobiología y paleoclimatología del tramo temporal Pleistoceno Superior y Holoceno de la Comu…
2022
El periodo Cuaternario se caracteriza climáticamente por la alternancia de fases glaciales e interglaciales, y, asociadas a ellas, importantes fluctuaciones de la línea de costa. Dado que este marco temporal es altamente relevante en el campo de la evolución humana y, por ello, gran parte de su estudio se ha centrado en esta temática; también lo es para entender diversos aspectos de la historia natural de otros grupos de vertebrados, como es el caso de los reptiles y anfibios. Hasta ahora son escasos los estudios del componente herpetológico de las faunas de vertebrados en el este de la península ibérica durante el Pleistoceno Superior y Holoceno, habiéndose centrado fundamentalmente este e…