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Symulator do oceny parametrów transmisji w bezprzewodowych sieciach czujnikowych AD-HOC

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W czasie rozwoju sieci czujnikowych pojawiły się koncepcje rozwiązań bezprzewodowych, w których informacja o mierzonej wielkości może zostać przesłana drogą radiową. Pozwoliło to na dostęp czujników do trudno dostępnych miejsc, w których poprowadzenie okablowania jest problematyczne. Rozwiązanie bezprzewodowe umożliwia również wykorzystanie czujników na obiektach ruchomych. Możliwości bezpr[...]

Cooperating Home Objects as Opportunistic Computing Platform for Assisted Living Współpracujące obiekty domowe jako platforma dla oportunistycznych aplikacji wspomagających osoby starsze i chore


  Nowadays it became possible to cheaply equip a regular home object, even a low-tech one, with an embedded, microcontroller-based node capable of sensing, actuating, and wireless communications. One can envision that a number of such home items can form a network (an "object community") and start co-operating, e.g., to help inhabitants in their daily chores. To maximize possible benefits from such an object community, it should not be tied to any specific application. On the contrary, the object community should accept multiple diverse applications that use available resources (e.g., sensors) for different purposes. Similarly, each application should be deployable in multiple object communities. As object communities are going to differ from home to home (each home has a specific collection of home items), applications should be developed separately, without any particular object community in mind. But if so, then the sensing and actuating resources available at runtime are going to be at least partially unknown at the development time, and the application should behave opportunistically. Specifically, it should take the best advantage of whatever items it finds at a particular home. The idea intimately coupled to opportunistic behavior is that of besteffort performance: as the target object community may not provide all needed resources, the application cannot offer guarantees as to its functionality. In "poor" object communities (i.e., ones with very few objects), the application may deliver its functionality to a substantially lower degree than in "rich" ones. However, even if only some functionality is delivered, the end-users may still be satisfied, especially that they do not make any investment to make the object community happen (the end-user acquires node-equipped home items just like ordinary ones, to enjoy their native functionality). We refer to the home automation approach based on opportunistic behavior and best-eff[...]

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