What is this?

This is the source code behind the paper:

• A. Elsts, S. Kim, H. Kim, C. Kim. An Empirical Survey of Autonomous Scheduling Methods for TSCH, IEEE Access, 2020. https://doi.org/10.1109/ACCESS.2020.2980119

Autonomous scheduling tests

The paper experimentally evaluate the ALICE and Orchestra schedulers.

Our experiments used the FIT IoT-LAB infrastructure. Alternative simulation-only experiment setup is possible using Cooja motes and either trace-based or randomly-generated simulation scripts.

Quick start

The autonomous scheduling test applications are available under examples/autonomous/.

For a quick start, open one of the simulation files provided there in Cooja and run it. The data packet generation starts after an 30 min warm-up period. Search for "seqnum=" in the logs to see packets being received.

Tweaking the setup

• Change the FIRMWARE_TYPE variable in the makefile to select a different protocol option to test.
• The file common-conf.h contains the configuration options common to all applications.

Applications

There are three applications that simulate three traffic patters:

• exp-collection - data collection from nodes to root
• exp-query - data query, root to nodes and back to root
• exp-local - local traffic between parent and child nodes

Automated testing infrastructure

The testing infrastructure, in form of both simulation generator and testbed executable generator, is available under examples/autonomous/testing.

• generate_firmwares.py will generate source folders with different settings and a script called compile-all.sh that can be used to build the firmwares for IoT-LAB
• generate_sims.py will generate simulation files and source folders with different settings and a script called run-all.sh that can be used to run Cooja on all of the different settings.

You may need to change some paths before using the scripts!

Implementation

The implementation of the different approaches can be found in:

• os/services/orchestra
• os/services/alice
• os/net/mac/tsch (some parts of it)

Request for an acknowledgement

When using this source code, please cite the following paper:

• A. Elsts, S. Kim, H. Kim, C. Kim. An Empirical Survey of Autonomous Scheduling Methods for TSCH, IEEE Access, 2020. https://doi.org/10.1109/ACCESS.2020.2980119

This work is mostly based on the ALICE and Orchestra schedulers:

• Seohyang Kim, Hyung-Sin Kim, and Chongkwon Kim, ALICE: Autonomous Link-based Cell Scheduling for TSCH, In the 18th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN'19).
• Simon Duquennoy, Beshr Al Nahas, Olaf Landsiedel, and Thomas Watteyne, Orchestra: Robust Mesh Networks Through Autonomously Scheduled TSCH, ACM SenSys'15