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Supporting Public Protection and Disaster Relief (PPDR) services are mandatory in modern wireless access networks. The sub-1GHz band is particularly suited to provide PPDR services due to the better propagation characteristics and attendant increase in link budget. In this work, we describe a novel transmit mode under a multi-operator non-orthogonal spectrum sharing framework, which can provide robust...
An Algorithm is considered computationally secure if it can not be broken with standard resources, either current or future. In this paper we have introduced a new block cipher algorithm named X-MODDES. It is unique independent approach which uses several computational steps along with string of operators and randomized delimiter selections by using some suitable mathematical logic. X-MODDES is specially...
Changes in the behavioral activity of elderly people living alone at home may be an indicator of their functional health status. In this paper, we evaluate the characteristics of a pyro-electric infrared detector (PIRD) and demonstrate that the sensitivity of the detector can be increased if four sensors, one at each corner of the room, is installed (instead of one). The experimental results suggest...
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