The previous Decentralised Cognitive Medium Access Control (DC-MAC) protocol allows Secondary Users (SUs) to independently search for spectrum access opportunities without the need for a central coordinator. DC-MAC assumes that the detection scheme is ideal at the Physical (PHY) layer. In fact, a more complex detection algorithm is impractical in distributed spectrum sharing scenarios. Energy Dete...Show More
Interference alignment is a kind of transmission technique which is able to align the interference from other transmitters into the same channel space. This paper proposes a novel optimized cooperative interference alignment (IA) scheme for a K user Multiple Input Multiple Output (MIMO) M × M interference channel (IC). In order to maximized decrease the effect of the interference from unwanted tra...Show More
