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Optimizing the beacon exchange rate for proactive autonomic configuration in ubiquitous MANETs
Proactive self-configuration is indispensable for MANETs like ubiquitous sensor networks (USNs), as component devices of the network are usually exposed to natural or man-made disasters due to the hostile deployment and ad hoc nature of the USNs. Network state beacons (NSBs) are exchanged among the key nodes of the network for crucial and effective monitoring of the network for steady state operation. The rate of beacon exchange (F/sub E/) and its contents, define the time and nature of the proactive action. Therefore it is very important to optimize these parameters to tune the functional response of the USN. This paper presents a comprehensive model for monitoring and proactively reconfiguring the network by optimizing the F/sub E/. The results confirm the improved throughput while maintaining QoS over longer periods of network operation
Simplest Cubic Fields
Let be the simplest cubic field, it is known that can
be generated by adjoining a root of the irreducible equation
, where belongs to . In this paper we have
established a relationship between , and where
is a root of the equation and is a
root of the same equation with replaced by and
Distributed and Load-Adaptive Self Configuration in Sensor Networks
Proactive self-configuration is crucial for MANETs such as sensor networks, as these are often deployed in hostile environments and are ad hoc in nature. The dynamic architecture of the network is monitored by exchanging so-called Network State Beacons (NSBs) between key network nodes. The Beacon Exchange rate and the network state define both the time and nature of a proactive action to combat network performance degradation at a time of crisis. It is thus essential to optimize these parameters for the dynamic load profile of the network. This paper presents a novel distributed adaptive optimization Beacon Exchange selection model which considers distributed network load for energy efficient monitoring and proactive reconfiguration of the network. The results show an improvement of 70% in throughput, while maintaining a guaranteed quality-of- service for a small control-traffic overhead
On certain equations of arbitrary length over torsion-free groups
Let be a non-trivial torsion free group and be an unknown. In this
paper we consider three equations (over ) of arbitrary length and show that
they have a solution (over ) provided two relations among their coefficients
hold. Such equations appear for all lengths greater than or equal to eight and
the results presented in this article can substantially simplify their
solution.Comment: arXiv admin note: substantial text overlap with arXiv:1903.0650
Simulation of continuous variable quantum games without entanglement
A simulation scheme of quantum version of Cournot's Duopoly is proposed, in
which there is a new Nash equilibrium that may be also Pareto optimal without
any entanglement involved. The unique property of this simulation scheme is
decoherence-free against the symmetric photon loss. Furthermore, we analyze the
effects of the asymmetric information on this simulation scheme and investigate
the case of asymmetric game caused by asymmetric photon loss. A second-order
phase transition-like behavior of the average profits of the firm 1 and firm 2
in Nash equilibrium can be observed with the change of the degree of asymmetry
of the information or the degree of "virtual cooperation". It is also found
that asymmetric photon loss in this simulation scheme plays a similar role with
the asymmetric entangled states in the quantum game.
PACS numbers: 02.50.Le, 03.67.-aComment: 7 pages, 4 figures, RevTex, some contents have been revise
MONETARY EXCHANGE RATE MODEL REVISITED: COINTEGRATION AND FORECASTING IN HETEROGENEOUS PANEL DATA
ABSTRACT This study re-examines the exchange rate-monetary fundamentals link with in a panel data framework. Pure time series and pooled time series-based tests fail to find empirical support for monetary exchange rate models (Sarantis (1994) and Groen (2000)). Using recently developed Panel Data Techniques; we would test the exchange rates and monetary fundamentals in a quarterly panel of 19 countries mostly from developed region extending from 1973.1 to 1997.1. Present analysis would be centered on three issues. First, we test whether exchange rates cointegrated with long run determinants predicted by economic theory. For this purpose, we would be employed Pedroni (1997) and Larsson et al (2001) panel cointegration tests for empirical validation of the study. Second, we will also test the short run implications of exchange rate model. These short run implications will be tested; through adapting the panel VEC model the short run identification schemes of Johansen and Juselius (1994). The last issue is to examine the ability for monetary fundamentals to forecast future exchange rate returns. The present endeavor will follow Mark and Sul (2001) approach for forecasting in the case of Panel Data Testing.Panel cointegration; Prediction; Exchange rates.
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