Title :
A new back-off mechanism for the S-MAC protocol with applications in healthcare
Author :
Aghayi, Emad ; Khansari, Mohammad ; Memarzadeh-Tehran, Hamidreza
Author_Institution :
Fac. of New Sci. & Technol., Univ. of Tehran, Tehran, Iran
Abstract :
In this paper, a modified S-MAC protocol incorporating a new back-off mechanism applicable to body sensor networks (BSNs) is proposed. The proposed protocol alleviates the drawback associated with the back-off mechanism which is currently utilized in the original S-MAC protocol in addition to its derivatives. Also, the cross-layer technique is used so as to achieve a better energy consumption and a reduced delay which are both accomplished by adjusting the contention window adaptively. Performance analysis of the modified S-MAC protocol is evaluated in a network simulator (i.e., NS-2) by monitoring the energy efficiency, delay and throughput parameters in an example BSNs. The obtained results show a significant improvement with the proposed protocol performance compared to the original counterpart.
Keywords :
access protocols; body sensor networks; delays; health care; power aware computing; BSN; S-MAC protocol; back-off mechanism; body sensor networks; cross-layer technique; delay parameters; energy consumption; energy efficiency; healthcare; modified S-MAC protocol; network simulator; throughput parameters; Delays; Energy consumption; Media Access Protocol; Reliability; Throughput; Wireless sensor networks; Healthcare; S-MAC; back-off; body sensor networks (BSNs);
Conference_Titel :
Telecommunications (IST), 2014 7th International Symposium on
Conference_Location :
Tehran
Print_ISBN :
978-1-4799-5358-5
DOI :
10.1109/ISTEL.2014.7000769
