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In this paper we investigate the effect of the number and delays of discrete channel impulse response components on the accuracy of wireless system simulations. The subject is relevant in considering large systems such as wireless networks, where realistic results are required, but it is also necessary to apply models that are simple enough to enable practically realizable simulation times. We present...
This paper presents computationally efficient channel models, considered specifically from the point-of-view of network-level simulations. We outline models applicable at various system protocol layers of wireless communication systems, which take into account small-scale fading channel environments, and the time-variant error behavior relevant for mobile receivers. The presented models can be utilized...
In this paper, we propose an environment to support evaluation of network-aided emergency support systems. We provide an original language to describe the behavior of rescue teams, medical teams and sufferers in disaster areas. This language allows to describe reactive behavior in which actions are determined depending on their locations, surroundings and information received from emergency support...
The development of reconfigurable and multimode terminals enable service providers to use the excess bandwidth to support services from other networks, at the expense of terminals performing vertical handover when a call is served by another network. The improvement in the performance of such an overlay heterogeneous network is expressed in terms of the increase in capacity while fulfilling each networkspsila...
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