Enjoy the Benefit of Network Coding: Combat Pollution Attacks in 5G Multihop Networks

Abstract EN

In the upcoming 5G era, many new types of networks will greatly expand the connectivity of the world such as vehicular ad hoc networks (VANETs), Internet of Things (IoT), and device-to-device communications (D2D).

Network coding is a promising technology that can significantly improve the throughput and robustness of these emerging 5G multihop networks.

However, network coding is generally very fragile to malicious attacks such as message content corruption and node compromise attacks.

To take advantage of network coding in performance gain while refraining malicious network attacks is an interesting and challenging research issue.

In this paper, we propose a new error-detection and error-correction (EDEC) scheme that can jointly detect and remove the malicious attacks based on the underlying error-control scheme for general multihop networks that can model the 5G multihop networks.

The proposed scheme can increase the throughput for network with pollution attacks compared to existing error-detection based schemes.

Then we propose a low-density parity check (LDPC) decoding based EDEC (LEDEC) scheme.

Our theoretical analysis demonstrates that the LEDEC scheme can further increase the throughput for heavily polluted network environments.

We also provide extensive performance evaluation and simulation results to validate the proposed schemes.

This research ensures the expected performance gain for the application of network coding in the 5G network under malicious pollution attacks.