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Slotted CSMA/CA Based Energy Efficinet MAC Protocol Design in Nanonetworks

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Document pages: 12 pages

Abstract: Devices in a beacon-enabled network use slotted CSMA CA to contend for channel usage. Each node in the network competes for the channels when ready to transmit data. The slotted CSMA CA mechanism based on the super-frame structure fairly provides communication chance for each node and makes a reasonable usage of the available energy in beacon-enabled Zigbee networks. When wireless nano-sensor nodes are implanted into the target human body area for detecting disease symptoms or virus existence, each node also requires a similar characteristic in channel sharing and in the transmission of event-driven data with a short length. In this paper, we suggest a wireless network model with nano-sensor nodes for the in-body application. We propose a novel MAC protocol derived from an existing Zigbee MAC protocol scheme and analyze the performance of energy usage with variable super-frame durations and packet sizes.

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