Virus Epidemic Suppression by Percolation Threshold on Ad-hoc Networks

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  • アドホックネットワークでの浸透閾値を用いたウイルス蔓延抑制
  • アドホックネットワーク デ ノ シントウ シキイチ オ モチイタ ウイルス マンエン ヨクセイ

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Abstract

Conventional virus suppression strategies that immunize nodes possessing many links could not be applied for ad-hoc networks because these networks do not have nodes in which links concentrate. New strategies, therefore, are necessary for the ad-hoc networks. It has been found that a giant network covering whole field emerges suddenly under the situation that the average link number becomes larger than 4.52. In this study, by using this distinctive feature we examined simulations reducing the number of links around viruses, then confirmed whether this method affect the number of infected nodes. Although virus population increases as the average link number increases up to around 11, it does not achieve 1.0 because of the effect of Medium Access Control. For the case of the average link number over 11, the virus population rate gradually decreases since the blocking effect by Medium Access Control becomes stronger there. Furthermore, this study shows that locally reducing the number of links of ad-hoc networks is effective for suppressions of virus epidemic.

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