Spatial modulation based location aware beam-forming in GFDM modulated cognitive radio systems

In Virtual Antenna Array (VAA) based wireless system, knowledge of users' locations can help the transmitter to achieve interference avoidance by steering the main beam towards the intended recipient. In this work, the idea has been applied to licensed shared access (LSA) based cognitive radio (CR) environment where location aware beam-forming has been implemented on spatially modulated Generalized Frequency Division Multiplexing (SM-GFDM) signal. Computer simulation shows that under multipath fading conditions, the implemented system achieves better performance than conventional SM-GFDM without beam-forming.