Open AccessAn Energy Efficient MAC Protocol for Linear WSNs
Author(s) -
Dai Guoyong,
Miao Chunyu,
Ying Kezhen,
Wang Kai,
Chen Qingzhang
Publication year - 2015
Publication title -
chinese journal of electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 25
eISSN - 2075-5597
pISSN - 1022-4653
DOI - 10.1049/cje.2015.10.010
Subject(s) - computer network , wireless sensor network , computer science , energy consumption , relay , protocol (science) , key distribution in wireless sensor networks , node (physics) , sink (geography) , efficient energy use , wireless , wireless network , telecommunications , engineering , medicine , power (physics) , physics , alternative medicine , cartography , structural engineering , pathology , quantum mechanics , geography , electrical engineering
Wireless sensor networks (WSNs) have been employed as an ideal solution in many applications for data gathering in harsh environment. Energy consumption is a key issue in wireless sensor networks since nodes are often battery operated. Medium access control (MAC) protocol plays an important role in energy eciency in wireless sensor networks because nodes’ access to the shared medium is coordinated by the MAC layer. An energy efcient MAC protocol is designed for data gathering in linear wireless sensor networks. In order to enhance the performance, when a source node transmits data to the sink, proper relay nodes are selected for forwarding data according to the energy consumption factor and residual energy balance factor. Some simulation experiments are conducted and the results show that, the proposed protocol provides better energy eciency and long lifetime than the existing DMAC protocol.