Polar coded Interleave Division Multiple Access Ultra Wide Band (IDMA-UWB) communication system

In this paper, a Polar code is merged with Interleave Division Multiple Access-Ultra Wide Band (IDMA-UWB) to build a Polar-coded-IDMA-UWB communication system. For a multiuser UWB indoor environment, the performance is mainly limited by multipath fading and interferences as Multiple Access Interference (MAI) which is poorly approximated by a Gaussian distribution due to its impulsive nature. The main contribution of this paper is to study the effect of applying the newly coding technique, polar code, on IDMA-UWB system in terms of BER performance and complexity with good approximation for the interferences by using three different models as, Symmetric Alpha Stable (SαS), Laplace and Gaussian Mixture Model (GMM). Moreover, a comparative analysis is held between the proposed system and Low Density Parity Check (LDPC)-coded-IDMA-UWB system under the studied noise models. The results indicate that the proposed system is robust against noise and interferences with complexity much lower than LDPC-coded system.