The co-channel interference for mobile users (MUs) of a public safety network (PSN) in the co-existence heterogeneous networks such as unmanned aerial vehicles (UAVs) and LTE-based railway (LRNs) needs thorough investigation, where UAVs are deployed base stations (BSs) cell-edge coverage enhancement. Moreover, LRN is employed train, its control signal demands high reliability low latency. It ne...

AbstracfThe probability of co-channel interference (PCI) due to multiple correlated log-normal signals is calculated for cellular radio systems operating in Rayleigh fading and lognormal shadowing environment. The effects on the PCI of the correlation between the signals, the standard deviation due to shadowing, the number of interferers, the co-channel protection ratio, and the traffic load is...

Some OFDMA-based wireless commuication systems, e.g., Wireless Broadband Internet (WiBro) or Worldwide interoperability for Microwave Access (WiMAX), support frequency reuse of 1 to maximize spectral efficiency. One of the efficient methods to reduce co-channel interference (CCI) caused by frequency reuse is fractional frequency reuse (FFR). In this paper, we propose and validate a novel freque...

—Interference alignment (IA) is one of the promising technologies to solve the co-channel interference in wireless communication systems. It can effectively improve system capacity and reliability. Based on consideration of engineering applications, the realization of interference alignment for threecell MIMO cooperative communication system is studied and then a precoding matrices group selec...