A New Method for Improving Throughput Performance by Simultaneous Transmission on Full-Duplex Wireless Communication Systems

Recently, by the rapid development of IoT (Internet of Things) [1] technologies, a bunch of devices are newly connected to a network. Hence, it is required to increase communication bandwidth for full filling quality of network service. Generally, introducing full-duplex communication [2] can increase network bandwidth, instead of half-duplex communication. In the case of wireless communications, however, existing commercial communication systems do not support the full-duplex wireless communication. Nowadays, new technology to realize full-duplex wireless communication even on a same channel has been developed despite the hardness of the elimination of self interference [3,3-5]. For implementing a function of full-duplex communication on a wireless network, we can increase upper limit of network bandwidth, significantly. However, in order to earn privilege of full-duplex wireless communication, appropriate scheduling on simultaneous transmission is required [6-9]. For the scheduling, simultaneous transmitters must be selected carefully by considering their communication range. Therefore, this paper proposes a method to encourage multiple potential transmitters engage new simultaneous transmissions without any collision with preceding primary transmission. Characteristics of the proposal is evaluated by computer simulation.