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An SDN Agent-enabled Rate Adaptation Framework for WLAN

Research output: Contribution to conferencePaper

Original languageEnglish
Number of pages6
DateAccepted/In press - 4 Feb 2019
DateE-pub ahead of print (current) - 11 Mar 2019
Event2019 IEEE International Conference on Communications (ICC): Empowering Intelligent Communications - Oriental Riverside Hotel, Shanghai, China
Duration: 20 May 201924 May 2019


Conference2019 IEEE International Conference on Communications (ICC)
Internet address


Rate or link adaptation is the determination of the optimal modulation and coding scheme (MCS) that will maximize the performance under the current wireless channel conditions. A Software-Defined Networking (SDN) agent is a software element bridging an SDN controller and any legacy wireless network elements by providing the abstraction of these elements. In this paper, we present the work of an SDN approach for designing and implementing a Rate/Link Adaptation (RA) framework for wireless local area networks (WLAN). The framework provides support for real-time RA applications and flexibility to satisfy various degrees of Quality of Service (QoS) or Quality of Experience (QoE) requirements. We implement the proposed framework as an extension to the Wireless Open-Access Research Platform (WARP), an FPGA based Software-Defined Radio (SDR) platform, with evaluation results indicating the feasibility of using SDN-RA under the stringent time constraints posed by the WLAN. To demonstrate the effectiveness of decoupling rate decision functions from the underlying wireless interface card and to highlight its applicability for a diverse set of scenarios, we present a use case deployed over the framework focusing on rate adaptation for individual traffic, and display optimization in different aspects, such as the reduction transmission errors.

    Research areas

  • Rate/Link adaptation, Software-Defined Networking (SDN), SDN agent, IEEE 802.11, Software-Defined Radio, Communications Systems and Networks Group


2019 IEEE International Conference on Communications (ICC): Empowering Intelligent Communications

Duration20 May 201924 May 2019
Location of eventOriental Riverside Hotel
Web address (URL)
Degree of recognitionInternational event

Event: Conference



  • An SDN Agent-enabled Rate Adaptation Framework for WLAN

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