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Density Functional Theory (DFT) based firstprinciple calculations have been performed to assess the influence of aromaticity on electron transport and charging energies of organic molecular Single Electron Transistor (SET). The study has been carried out by considering two organic molecules as SET quantum dots, Benzene (an aromatic hydrocarbon) and its non-aromatic derivative HexahydroBenzene. Structural...
In the current scenario, the increasing demand of high speed data transfer in wireless communication has been raised the requirement and optimization of orthogonal frequency division multiplexing (OFDM) based system like Advanced Long Term Evolution system. But, the main problem with OFDM based system is the high value of Peak-to-Average Power Ratio (PAPR) of the transmitted signals. In this work,...
A Wireless Adhoc Network is a group of wireless mobile nodes is an autonomous system of mobile nodes connected by wireless links. Each node operates not only as an end system, but also as a router to forward packets. In this paper mainly focused on MAC layer because this layer is most important for data communication to control the packet loss and error, we analyze MAC layer 802.16 and 802.11 networks...
An important issue for mobile ad hoc network is the routing protocol design. Due to frequent changes in the topology of the network this becomes a major technical challenge. Node failures and link breakages in the network may cause loss of the network resources. In this paper we proposed a method which, works in two phases, first is signal strength based AODV if this approach is not work then it switch...
With emerging trend in technology wireless networks allow user to travel from one location to another. Mobile Adhoc network (MANET) is one of the subareas of wireless network that dynamically form infrastructure less temporary network. MANET is a collection of intercommunicating mobile nodes forming a temporary network without any centralized administration. Due to the dynamic property of mobile nodes...
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