A topology-oblivious routing protocol for NDN-VANETs

TL;DR

This paper introduces an improved topology-oblivious routing protocol for NDN-based VANETs that enhances content retrieval efficiency by exploiting multiple paths and creating unicast routes based on MAC addresses, outperforming existing strategies.

Contribution

The paper presents iMMM-VNDN, a novel routing protocol that creates unicast routes from broadcast Interest messages using MAC addresses, improving content delivery in VANETs.

Findings

Higher Interest Satisfaction Rate compared to other strategies

Maintains low latency and jitter in message delivery

Effective in intermittent VANET connectivity conditions

Abstract

Vehicular Ad Hoc Networks (VANETs) are characterized by intermittent connectivity, which leads to failures of end-to-end paths between nodes. Named Data Networking (NDN) is a network paradigm that deals with such problems, since information is forwarded based on content and not on the location of the hosts. In this work, we propose an enhanced routing protocol of our previous topology-oblivious Multihop, Multipath, and Multichannel NDN for VANETs (MMM-VNDN) routing strategy that exploits several paths to achieve more efficient content retrieval. Our new enhanced protocol, i mproved MMM-VNDN (iMMM-VNDN), creates paths between a requester node and a provider by broadcasting Interest messages. When a provider responds with a Data message to a broadcast Interest message, we create unicast routes between nodes, by using the MAC address(es) as the distinct address(es) of each node. iMMM-VNDN extracts and thus creates routes based on the MAC addresses from the strategy layer of an NDN node. Simulation results show that our routing strategy performs better than other state of the art strategies in terms of Interest Satisfaction Rate, while keeping the latency and jitter of messages low.