Protocol Options For Low Power Sensor Network Mac Using Wake-Up Receivers With Duty Cycling
2016 IEEE International Conference on Communications (ICC)(2016)
摘要
Advances in miniaturization of sensor nodes enable a wide range of novel application scenarios. At the same time, however, this miniaturization drastically reduces the energy available for communication. We focus on wildlife monitoring applications for bats, which set a weight limit of 2 g for the sensor node including the battery. Here, the protocol design is complicated by the need to recharge a capacitor before each communication attempt. For communications with ground stations, wake-up receivers are used that inherently help mitigate synchronization demands and to provide a superframe structure. We study the not obvious choice of transmission slots within these synchronized superframes. Our findings clearly indicate that slotted access outperforms simple random channel access. Well-planned TDMA schedules only bring little gain compared to random slot selection.
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关键词
random slot selection,TDMA schedules,time division multiple access,random channel access,transmission slots,synchronization demands,ground stations,wildlife monitoring applications,sensor nodes,duty cycling,wake-up receivers,low power sensor network MAC
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