A cross-layer based TDMA protocol for wireless biomedical sensor networks

Author

Qingjin Zeng ; Ke Zhang ; Zeyang Wang

Author_Institution

Res. Instn. of Electron. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2012

fDate

16-18 Oct. 2012

Firstpage

1380

Lastpage

1383

Abstract

In WBSN, it is important to ensure that packets can be sent to the medical centre reliably and efficiently. There have been numerous solutions adopting CSMA/CA to access networks. However, CSMA/CA can´t give delay guarantee or QoS guarantee. TDMA can solve the problem, but TDMA takes no account of transmitting order so that it limits the improvement of network performance. This paper presented Q-TDMA, a cross-layer based TDMA protocol which allocates slots by virtual wireless links. Based on DSR routing information, Q-TDMA builds virtual wireless links, and allocates links to data flow. Q-TDMA also counts packets buffered in LLC queue to adjust priority and then adjust schedule dynamically. The simulation result shows that Q-TDMA performs better than TDMA. It´s especially applicable to guarantee QoS for urgent data transmission in WBSN.

Keywords

biomedical communication; packet radio networks; time division multiple access; wireless sensor networks; DSR routing information; LLC queue; Q-TDMA; QoS; WBSN; cross layer based TDMA protocol; efficient packet sending; reliable packet sending; urgent data transmission; virtual wireless links; wireless biomedical sensor networks; LLC; MAC; QoS; TDMA; WBSN; cross-layer;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering and Informatics (BMEI), 2012 5th International Conference on

Conference_Location

Chongqing

Print_ISBN

978-1-4673-1183-0

Type

conf

DOI

10.1109/BMEI.2012.6513174

Filename

6513174