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The low-power, low-rate ZigBee/IEEE 802.15.4 wireless sensor network (WSN) is vulnerable to the interference from a collocated wireless local area network (WLAN), which operates with considerably higher power in the same 2.4GHz Industrial, Scientific, and Medical (ISM) band. In this paper, a novel and effective Interference Aware Adaptive Clear Channel Assessment (IAACCA) technique is proposed to...
Energy efficiency is a critical issue for a MAC protocol in sensor networks. Thus much effort has been paid on research about the sleeping mode of MAC protocol. However, we found out that significant amount of energy is wasted when a data packet received by MAC is transferred to the network layer to get the next hop address by searching the routing table and then the packet is transferred back to...
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