NADA: A Unified Congestion Control Scheme for Real-Time Media

Document Type Expired Internet-Draft (rmcat WG)
Authors Xiaoqing Zhu  , Rong Pan  , Michael Ramalho  , Sergio de la Cruz  , Charles Ganzhorn  , Paul Jones  , Stefano D'Aronco 
Last updated 2015-10-14 (latest revision 2015-03-26)
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
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Stream WG state Adopted by a WG
Document shepherd No shepherd assigned
IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Network-Assisted Dynamic Adaptation (NADA) is a novel congestion control scheme for interactive real-time media applications, such as video conferencing. In NADA, the sender regulates its sending rate based on either implicit or explicit congestion signaling in a consistent manner. As one example of explicit signaling, NADA can benefit from explicit congestion notification (ECN) markings from network nodes. It also maintains consistent sender behavior in the absence of explicit signaling by reacting to queuing delay and packet loss. This document describes the overall system architecture for NADA, as well as recommended behavior at the sender and the receiver.


Xiaoqing Zhu (
Rong Pan (
Michael Ramalho (
Sergio de la Cruz (
Charles Ganzhorn (
Paul Jones (
Stefano D'Aronco (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)