Control Access Point of Devices for Delay Reduction in WBAN Systems with CSMA/CA
Due to the gathering of sickrooms and consultation rooms in almost all hospitals, the performance of wireless devices system is deteriorated by the increase of collision probability and waiting time. In order to improve the performance of wireless devices system, relay is added to control the access point and then the access of devices is distributed. The concentration of access point is avoided and then the performance of system is expected to be improved. The Discrete Time Markov Chain (DTMC) is proposed to calculate the access probability of devices in a duration time slot.