Secure Network Coding based Data Splitting for Public Safety D 2 D communications over LTE Heterogeneous Networks

This paper investigates the issue of secure Network Coding (NC) routing for Public Safety (PS) Device to Device (D2D) communications over LTE Heterogeneous Networks (HetNets). A new approach, named Secure Network Coding based Data splitting algorithm (SNCDS), is presented to construct secure network coded symbols by using Data Splitting (DS) mechanism when transmitting NC symbols. The objective of this solution is to assure the confidentiality in the network, by avoiding eavesdroppers to get any meaningful information about the source node. Our work concerns both of internal and external attacks. DS mechanism avoids Hackers to get the whole symbol sent by the source. Furthermore, when the eavesdropper gets information, he ignores that it is only part of the sent symbol, and also that the data is transmitted in random order. Only the source and the destination know the sequence order of the sent packets. The simulation results show that our approach assure a secure D2D communication without increasing the overhead in the network. Key-Words: Macro cells, Small cells, HetNets, Public safety, D2D, Security, Splitting Data.