%% You should probably cite draft-ietf-rohc-rtp instead of this I-D. @techreport{ietf-rohc-rtp-ace-00, number = {draft-ietf-rohc-rtp-ace-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-rohc-rtp-ace/00/}, author = {Christopher Clanton and Haihong Zheng and Khiem Le and Zhigang Liu}, title = {{Adaptive Header ComprEssion (ACE) for Real-Time Multimedia}}, pagetotal = 50, year = 2000, month = may, day = 25, abstract = {When Real-Time Multimedia over IP is applied to cellular systems, it is critical to minimize the overhead of the IP/UDP/RTP header, as spectral efficiency is a top requirement. Robustness to errors and error bursts is also a must. Existing IP/UDP/RTP header compression schemes such as that presented in IETF RFC 2508 {[}CRTP{]}, do not provide sufficient performance in such environments. This report describes a new scheme (ACE, or Adaptive header ComprEssion) , which like RFC 2508, is based on the idea that most of the time IP/UDP/RTP fields are either constant or can be extrapolated in a linear fashion. However, ACE incorporates several additional concepts which enable it to provide excellent compression efficiency (exceeds the performance of {[}CRTP{]}) along with a high degree of error-resiliency. Some of the concepts employed, such as Variable Length Encoding (VLE), enable ACE to adapt to changing behavior in the IP/UDP/RTP header fields, such that good efficiency and robustness characteristics are maintained over a wide range of operating conditions. ACE is a general framework that can be parameterized to account for the existence/non-existence and performance characteristics of the feedback channel. Thus, ACE is applicable over both bi-directional and unidirectional links. ACE is also able to perform a seamless handoff, i.e. the scheme can resume efficient compression operation immediately after handoff.}, }