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time slotted channel hopping (TSCH)

Time Slotted Channel Hopping (TSCH) is a time synchronous channel hopping technique that is part of the IEEE 802.15.4e standard. In TSCH hopping, all 16 channels of 802.15.4

are randomly assigned, which also causes the different channels to face different interface levels to which the hopping signal must be matched. The hopping scheme does not use all available transmission channels, but avoids those that are affected by interference in the ISM band

.TSCH originates

fromthe Time Synchronized Mesh Protocol (TSMP). Here, the time domain is divided into an infinite number of discrete time slots that are shared between all network nodes. Each network node

ofWireless Sensor Networks (WSN) receives a synchronized record of the elapsed time slots

, which isused to calculate the operating channel.

The time synchronized channel hopping method improves the robustness of the transmission against interference and fading. It is used in Wireless Sensor Networks (WSN) operating according to 802.15.4e, also in Bluetooth, WirelessHART, JupiterMesh and Dust Networks.

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Englisch: time slotted channel hopping - TSCH
Updated at: 03.12.2020
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