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Backhauling services through satellite systems have doubled between 2012 and2018. There is an increasing demand for this service for which satellitesystems typically allocate a fixed resource. This solution may not help inoptimizing the usage of the scarce satellite resource.  This study measures the relevance of using dynamic resource allocationmechanisms for backhaul services through satellite systems. The satellitesystem is emulated with OpenSAND, the LTE system with Amarisoft and theexperiments are orchestrated by OpenBACH. We compare the relevance of applyingTCP PEP mechanisms and dynamic resource allocations for different trafficservices by measuring the QoE for web browsing, data transfer and VoIPapplications.  The main conclusions are the following. When the system is congested, PEP andlayer-2 access mechanisms do not provide significant improvements. When thesystem is not congested, data transfer can be greatly improved throughprotocols and channel access mechanism optimization. Tuning the Constant RateAssignment can help in reducing the cost of the resource and provide QoEimprovements when the network is not loaded.

Impact of channel access and transport mechanisms on QoE in GEO-satellite based LTE backhauling systems