Effect of aggregate narrowband interference on the UWB autocorrelation receiver

There has been an emerging interest in non-coherent ultrawideband (UWB) communications, mainly due to their low-complexity and low-power consumption. Due to the large transmission bandwidth, UWB systems need to coexist and contend with many narrowband communication systems. As a result, the presence of narrowband interference (NBI) severely degrades the system performance. In this paper, we consider transmitted reference signaling and analyze its bit error probability in a multipath fading channel when NBI is present. In particular, we consider the case of multiple NBI, where the interfering nodes are scattered according to a spatial Poisson process. Our framework is simple enough to allow a tractable analysis and provide valuable insights to the design of practical UWB systems.