## 1 Introduction
The former generalises delay-constrained point-to-point transmission, while the latter permits the combinations of different codes in order to achieve a wanted level of operability. The encapsulation of these tools results in the successful generalisation of the schemes suggested in [29], which paved the way for a novel scheme that allows rate optimality under well-given conditions. This scheme is enhanced with optimisation, in order to improve the accomplished rates in the cases that the conditions for optimality are not satisfied. In [30], the authors examine the reliable transmissions mechanisms of the QUIC. In particular, they go through the process from the design to evaluation of FEC extensions to QUIC. These schemes are specially designed for scenarios with high delays and lossy links. The design comprises a generalised FEC frame and their implementation details suggest that there is support for the XOR Reed-Solomon and Convolutional RLC error-correcting codes. The separation of the packets, the received packets from the packets recovered by the FEC codes allows the avoidance of the delay in the loss congestion signal. The evaluation showed the application of an experimental design encapsulating the use of different delays and packet loss conditions. The authors show that their design succeeds in the adaptation of the protocol to the network conditions. As it can be derived from the results when the network exhibits a small loss rate and delay FEC acts as an overhead for the download completion. On the other hand, a high loss rate and longer delays allow the FEC to reduce the downloading time by avoiding costly retransmission timeouts. These results show the need for an adaptive FEC with respect to network conditions. In [31], the authors address the problem of the application of Forward Erasure Correction (FZC) codes to MPEG-4 video sequences sent and received by hosts of a network comprising a satellite link and wireless LAN with 802.11b devices. The scenario includes the video streaming application, which is executed on one end of the satellite link, while a wireless ad hoc network received the multicast video stream at the other end. The concept of this work is the demonstration of the enhancement of the Quality of Service (QoS) when the video is transmitted in the network. The metrics that were being measured were the packets loss, the reception delay, and the bandwidth occupancy overhead imposed by the use of the FZC. In this paper, two FEC schemes are employed, in order to apply them for AE in carbodies. We assume that the communication of these networked devices is 5G, which could be the next generation of an already existing wireless AE device, such as the Micro-SHM system that uses 4G. Thereafter, the two schemes are compared, namely the Reed-Solomon (RS) and the POLAR codes for such an application. The emergence of the 5 Gcommunication with these codes can provide more reliable links even in the presence of noise or interference. More specifically, simulations of throughput, Bit-Error Rate (BER) and Frame-Error-Rate (FER) comparison between the two schemes are performed, in order to indicate the one that is more effective in our application. The contributions of this paper are the following:  
* An application of FEC codes has been described, which aims at the transmission of the features of an SHM device without errors. * After the assumption that 5G communication is used in an SHM application, two FEC schemes have been compared, one being new and the other efficient, namely POLAR and RS codes, respectively. * The POLAR codes were shown as the best candidate due to metrics that have been used such as the FER, BER, and throughput. The remainder of this paper is as follows: Section 2 gives the AE setup scenario, Section 3 gives the carbody shell application, Section 4 provides a brief description of the FEC codes, Section 5 gives the results of our simulations and Section 6 gives the conclusions and future work.