A QoS-guaranteed System with Software Defined Networking and Micropayment <Abstract> This paper tackles the problem of using and paying a network servicewith guaranteed quality of service (QoS) at a fine granularity in thefuture wireless network. We propose the IOTA-based QoS guaranteed Flowsystem (IQF), where a user and service provider can exchange the IOTAcryptocurrency for the guaranteed network resources, such as latency andbandwidth. First, IQF uses the IOTA Tangle, a lightweight, efficientdistributed ledger technology, for its payment and transaction record.Second, IQF adopts Software Defined Networking to realize the guaranteeddelay and bandwidth provision. We have implemented the IQF systems usingthe mininet-wifi emulator, an SDN controller (i.e., POX), and IOTAclients. Moreover, we have evaluated the service provisioning algorithmswith a micropayment of IQF with the test Tangle (i.e., comnet). Theevaluation results show that IQF has successfully achieved the delay andbandwidth provision with all the transactions stored in comnet. |