Cognitive base station design for efficient spectrum utilization in cellular network

This paper proposes the architecture of a cognitive base station for 4G cellular communication networks. We have developed a novel priority driven spectrum handoff technique for Multi-User MIMO communication, where the base station creates beams for establishing communication links. Adaptive beamforming methods along with DoA have been used to dynamically create a beam toward the intended receiver as well as track the users and steer the beam when users are mobile. The work is followed by related simulations which shows 5.4 dB gain over the traditional cellular architecture with respect to CCI. Our proposed algorithms lead to significant increase in overall capacity of the network. It also promises higher spectrum efficiency compared to the traditional cellular architecture.