We investigate the reorientation dynamics of water at 300 K in solutions of magnesium sulfate and cesium chloride from classical atomistic molecular dynamics simulations using the "simple water model with four sites and negative Drude polarizability" (SWM4-NDP) and accompanying ion models; for SO4(2-), we derive SWM4-NDP-compatible parameters. Results indicate that pairs of ions have a cooperat...

With the emerge of cooperative applications it turned out that traditional transaction concepts are not suitable for these scenarios. Isolation of transactions, as guaranteed by the ACID transaction properties, contradicts the need of cooperation between users. In this paper, we propose a cooperative activity model that provides transactional properties suitable for cooperative scenarios. Our m...

In this paper, the performance of decode –and-forward relaying over multiple fading channels is been analyzed. Here at first overviewed traditional relaying techniques and compared it with coded cooperative relaying. BER performance the different schemes are analyzed and the results shows that coded cooperative relaying give better performance in terms of BER analysis. A new technique called ne...

In cognitive radio based cooperative sensing systems, some secondary users are likely to act malicious. Such secondary users are called malicious users. An optimal application of Dixon's outlier detection scheme for detecting malicious users in a cognitive radio cooperative spectrum sensing system has recently been termed as the Sliding Window Dixon's test. The Sliding window Dixon's test appli...