Biography
Enrollment Date: 2008
Graduation Date：2011
Degree：M.S.
Defense Date：2011.05.24
Advisors：Hanjun Jiang
Department：Institute of Microelectronics，Tsinghua University
Title of Dissertation/Thesis：MAC Design for Wireless Body Area Network
Abstract:
Wireless network and information integration technology have been widely used in human being health care field because of the rapid developments in information technology. Nowadays more attentions are paid to the health care field. The development in the information field is hoped to help people to improve their health. As one of the great developments in information field, the portable health monitoring system used as wireless body area network (WBAN) has been the focus. The system is composed by miniature-sensing intervention devices (mSAID) and portable control station (PCS). The data acquisitioned by sensors can be collected by mSAID firstly and then sent to PCS after data processing. The intervention can be finished by PCS after data receiving. Also the health monitoring can be achieved during this process. Meanwhile mSAID can receive configuration from PCS. The medium access controller (MAC) used in health care WBAN is the connection of the physical layer and application. Its typical characters are reliability and real-time. This paper introduced a MAC which is specially designed for WBAN and meets the demands of reliability and real-time. Through a specific channel coding scheme including whitening, cyclic redundancy check (CRC), Reed-Solomon (RS) encoding and Automatic Repeat reQuest (ARQ) as well, the bit error rate (BER) of the data transmission is decreased while the data transmission reliability is improved. This paper also introduces an application-optimized network scheme which provides multi-channel transmitting and receiving. The presented techniques help to improve the network efficiency and to build the WBAN rapidly. This paper introduced the shemetic of the MAC and the design of the modules including First Input First Output (FIFO), Interrupt request (IRQ) and interface. Verification of the MAC is finished based on the function verification and FPGA verification after hardware implementation. The MAC will be used in multi-mode and multi-band chip for short distance wireless communication.