Two Phase Validation Approach for ACID Transaction in Cloud

Abstract

Two Phase validation schemes based on IP address the objective to reduce the overall network traffic incurred by mobility management and packet delivery. The proposed schemes are peer-peer-based, i.e., Wireless Mesh Networks (WMNs) have gained Increasing attention as an attractive means to provide connectivity in complement to access as offered by regular Internet Service Providers (ISPs). a grass-root technique, however, often suffers from detrimental operating conditions and poor quality. Network virtualization, on the other hand, has been widely advocated as a possibility to overcome what has often been referred to as the ossification of the Internet. Combining the concept of network virtualization with WMN technology, therefore, appears to be promising and desirable. We develop analytical models based on stochastic Petri nets to evaluate the performance of the proposed schemes. We demonstrate that there exists an optimal threshold of the forwarding chain length, given a set of parameters characterizing the specific mobility and service patterns of a mobile user. We also demonstrate that our schemes yield significantly better performance than schemes that apply a static threshold to all mobile users. A comparative analysis shows that our IP forwarding schemes out per-form routing-based mobility management protocols for WMNs, especially for mobile Internet applications characterized by large traffic asymmetry for which the downlink packet arrival rate is much higher than the uplink packet arrival rate. We further present a distributed solution to manage multi-WMNs, and a mobility-aware context use case to demonstrate the usefulness of our approach.
Keywords: Two Phase management; IP forwarding; wireless mesh networks; performance analysis