Improving Data Transmission Quality For Bluetooth Low Energy In Wireless Body Area Network
Dapeng Cheng, Yanyan Mao · 2015
As an important branch of wireless sensor network (WSN), Wireless Body Area Network(WBAN) has great potential in the field of health care, smart home, etc. Recently, Bluetooth Low Energy (BLE) becomes one of the typical technologies of WBAN depending on its low power consumption. It is im-portant to ensure the efficiency of ble data trans-mission. In this paper, we proposed EDTM, an effi-cient data transmission mechanism for BLE-based WBAN. EDTM improve packet efficiency dynam-ic scheduling packet type. Moreover, we provide an adaptive packet type selection algorithm which dynamic adjusting the packet switching threshold. Simulation results show that EDTM achieve better efficiency than traditional method. When the PER is 10−3, the efficiency of EDTM is 0.2 while that of DH5 is only 0.05. In two state Markov process-es, EDTM has 0.13 efficiency more than DH5 when the PER is 6×10−4.