One of the major constraints in wireless sensor networks (WSNs) is power consumption. In recent years, a lot of efforts have been put into the design of medium access control (MAC) protocols for WSN, in order to reduce energy consumption and enhance the network’s lifetime. In this paper, we surveyed some MAC protocols for WSN and compared their design tradeoffs. The goal is to provide a foundation for future MAC design, and to identify important design issues that allow us to improve the overall performances.
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机译：Arthrodesis and arthroplasty of the first metatarsophalangic joint in the treatment of Hallux Rigidus - comparative study of appropriately selected patients
机译：Arthrodesis and arthroplasty of the first metatarsophalangic joint in the treatment of Hallux Rigidus - comparative study of appropriately selected patients?
机译：Yi-bing Fang方—兵，Zhongri jindai gangtie jishushi bijiao yanjiu: 1868-1933中日近代钢铁技术史比较研究： 1868-1933 [The History of Iron and Steel Technology in Modern China and Japan, 1868-1933: A Comparative Study] China: Shandong Education Press, 2013. 283 pp. RMB ￥ 50.
机译：两岸四地累犯制度比较研究——兼论中国内地累犯制度一体化之构想 =Comparative Study on Recidivism System in Hong Kong, Macao, Taiwan and China: Concurrently Discuss the Conception of Recidivism System Integration in Mainland China
