Working paper

Optimal Number of Paths with Multipath Routing in Hybrid Networks

In recent years, multipath routing has emerged as an efficient way to provide significant throughput gains in local networks. This has been observed both with technologies that do not self-interfere, such as Ethernet, and with technologies that do, such as WiFi, power-line communications (PLC) and LTE. With technologies that do not self-interfere, adding more paths is always beneficial in terms of throughput, whereas not always in networks with technologies that self-interfere. We investigate the number of paths necessary to reach maximal throughput when using multipath routing in hybrid networks with several technologies that self-interfere but do not interfere with each other. We show analytically and experimentally that the optimal number of paths is tightly linked to the number of technologies. We prove analytically that, for certain classes of networks, they are equal. Our analytical findings are verified both with simulations and experimentally on a testbed with PLC and two orthogonal WiFi channels.


    • EPFL-WORKING-231114

    Record created on 2017-09-19, modified on 2017-09-29

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