Brain Computer Interface (BCI) technologies have gained immense research attention in the past decade due to their potential to restore limb movements in patients with neurological disorders, injuries or limb losses. The development of Micro-Electro-Mechanical Systems (MEMS), have been of immense help in the collection Electrocorticography (ECoG) signals. However, the transmission of the collected ECoG signals to the corresponding organ over a wireless channel is still a challenge. This thesis is an attempt to overcome such an issue which hinders the development of a fully implantable wireless BCI system. Previous studies have validated the need of multiple transmitters inside the brain to implement such a system. The need for multiple transmitters has raised the need for a Medium Access Control (MAC) protocol for successful transmission of the signals to the receiver. The MAC protocol to be used needs to be very simple considering the size and sensitivity BCI system. This thesis proposes a new MAC protocol for UHF-RFID transmitters, compares and verifies the results with the existing MAC protocols. Experimental study compares the performance of the proposed protocol with the existing and widely used MAC protocols. Results show a detailed analysis of the number of collisions, delay, received signal strength, SNR and channel capacity. These investigations are necessary to achieve the goal of a fully implantable wireless BCI system.
