caa a22 4500 445297220 CHVBK 20180317142545.0 cr unu---uuuuu 170323e20101201xx s 000 0 eng 10.1007/s12243-010-0173-3 doi (NATIONALLICENCE)springer-10.1007/s12243-010-0173-3 A load-aware energy-efficient and throughput-maximized asynchronous duty cycle MAC for wireless sensor networks [Elektronische Daten] [Muhammad Monowar, Muhammad Alam, Md. Rahman, Choong Hong, Sungwon Lee] Being a pivotal resource, conservation of energy has been considered as the most striking issue in the wireless sensor network research. Several works have been performed in the last years to devise duty cycle based MAC protocols which optimize energy conservation emphasizing low traffic load scenario. In contrast, considering the high traffic situation, another research trend has been continuing to optimize both energy efficiency and channel utilization employing rate and congestion control at the MAC layer. In this paper, we propose A Load-aware Energy-efficient and Throughput-maximized Asynchronous Duty Cycle MAC (LET-MAC) protocol for wireless sensor networks to provide an integrated solution at the MAC layer considering both the low-and high-traffic scenario. Through extensive simulation using ns-2, we have evaluated the performance of LET-MAC. LET-MAC achieves significant energy conservation during low traffic load (i.e., no event), compared to the prior asynchronous protocol, RI-MAC, as well as attains optimal throughput through maximizing the channel utilization and maintains lower delay in regard to the CSMA/CA-like protocol during a high volume of traffic (i.e., when an event occurs). Institut Télécom and Springer-Verlag, 2010 Wirelesssensornetworks nationallicence Energyconservation nationallicence MACprotocol nationallicence Monowar Muhammad Computer Engineering Department, Kyung Hee University, Seoul, South Korea aut Alam Muhammad Computer Engineering Department, Kyung Hee University, Seoul, South Korea aut Rahman Md Computer Engineering Department, Kyung Hee University, Seoul, South Korea aut Hong Choong Computer Engineering Department, Kyung Hee University, Seoul, South Korea aut Lee Sungwon Computer Engineering Department, Kyung Hee University, Seoul, South Korea aut annals of telecommunications - annales des télécommunications Springer-Verlag 65/11-12(2010-12-01), 777-794 0003-4347 65:11-12<777 2010 65 12243 https://doi.org/10.1007/s12243-010-0173-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12243-010-0173-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Monowar Muhammad Computer Engineering Department, Kyung Hee University, Seoul, South Korea aut NATIONALLICENCE 700 1- Alam Muhammad Computer Engineering Department, Kyung Hee University, Seoul, South Korea aut NATIONALLICENCE 700 1- Rahman Md Computer Engineering Department, Kyung Hee University, Seoul, South Korea aut NATIONALLICENCE 700 1- Hong Choong Computer Engineering Department, Kyung Hee University, Seoul, South Korea aut NATIONALLICENCE 700 1- Lee Sungwon Computer Engineering Department, Kyung Hee University, Seoul, South Korea aut NATIONALLICENCE 773 0- annals of telecommunications - annales des télécommunications Springer-Verlag 65/11-12(2010-12-01), 777-794 0003-4347 65:11-12<777 2010 65 12243 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer