ITTC Project


ATM Adaptation Layer for Composite Users (AAL-CU) Research

Project Award Date: 01-01-1997



Description

AAL-CU (ATM Adaptation Layer for Composite Users)
is a new AAL that is currently being discussed and standardized within the ATM Forum and ITU-T.

The intent is for AAL-CU to fill a need (not met by existing AALs) for multiplexing several small data units from different sources/connections into a single ATM VC connection. This will limit packetization delay for compressed voice without wasting transmission bandwidth due to partial filling of ATM cells.

The original motivation for AAL-CU was to support compressed voice as found in many cellular systems, but voice trunking and ATM to the desktop have since been added as potential AAL-CU applications.

Proposed Project Goals

- Provide a detailed performance evaluation of the new AAL-CU, including comparisons with AAL1 and AAL5 alternatives, and recommendations for appropriate protocol parameter values.

- Provide an evaluation of the various impacts of this new protocol on the ATM control plane (e.g., signaling).

- Provide specific recommendations concerning the application of AAL-CU to wireless/cellular networks and concerning interworking of AAL-CU between wireless/cellular networks and fiber-optic ATM networks.

- Provide a technical assessment of AAL-CU's capabilities for other potential applications besides wireless/cellular.




Investigators

Faculty Investigator(s): David Petr (PI)


Project Sponsors


Primary Sponsor(s): Sprint


Partner with ITTC

The Information and Telecommunication Technology Center at the University of Kansas has developed several assistance policies that enhance interactions between the Center and local, Kansas, or national companies. 

ITTC assistance includes initial free consulting (normally one to five hours). If additional support is needed, ITTC will offer one of the following approaches: 

Sponsored Research Agreement

Individuals and organizations can enter into agreements with KUCR/ITTC and provide funds for sponsored research to be performed at ITTC with the assistance of faculty, staff and students.

Licensing and Royalty/Equity Agreement

An ITTC goal is the development of investment-grade technologies for transfer to, and marketing by, local, Kansas, and national businesses. To enhance this process, the Center has developed flexible policies that allow for licensing, royalty, and equity arrangements to meet both the needs of ITTC and the company.

Commercialization Development

Companies with a technology need that can be satisfied with ITTC's resources can look to us for assistance. We can develop a relationship with interested partners that will provide for the development of a technology suited for commercialization.

ITTC Resource Access

ITTC resources, including computers and software systems, may be made available to Kansas companies in accordance with the Center's mission and applicable Regents and University policies.

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