A Two Proposed Peer to Peer Approach Based on Locality Awareness and Replica Method to Disseminate and Manage Data in Vanet

Abstract

Peer-to-peer (P2P) systems are widely used in applications such as information dissemination and voice over IP, eliminating the need for a client-server model. In vehicular ad hoc networks (VANETs), high mobility leads to frequent topology changes and disconnections, making data availability a key challenge. To address this, we introduce a Distributed Hash Table (DHT) based on structured P2P networks, offering self-organization, scalability, and decentralization. This paper proposes two approaches to enhance data availability and lookup success rates. The first method utilizes data replication to improve availability and reduce lookup delay without adding significant network overhead. The second approach incorporates locality awareness to optimize search success and minimize lengthy routing issues. Both solutions are evaluated through simulations in urban environments, considering metrics such as lookup success ratio, logical hop count, and delay. The results demonstrate the effectiveness of the proposed approaches in improving data retrieval efficiency in VANETs.