ITTC Project

Advanced Techniques for Continuous Phase Modulation

Project Award Date: 12-17-2007


Continuous Phase Modulation (CPM) is a communication format that continues to play a significant role in wireless communications. Very transmitter friendly, CPM is the modulation of choice in applications where low-cost circuitry and transmitter power efficiency are essential (e.g., Bluetooth). However, CPM can be challenging to work with on the receiving end. Therefore, most of the attention given to CPM is focused on improving aspects of receiver performance.

ITTC researchers will establish the viability of CPM in new applications. One example proposed is BLAST-type MIMO CPM. A number of fundamental questions are still open about such schemes, regarding their capacity, performance, and complexity. Another example proposed is concatenated coded CPM with iterative (turbo) detection. This application is still in its infancy, and a number of questions remain open regarding code design (LDPC, convolutional, etc.) and the best reduced-complexity decoding algorithms (coherent and noncoherent).

Researchers will advance CPM in its existing applications. Receiver synchronization is a challenge that continues to trouble CPM in some cases. One method of simplifying the synchronization problem is to use noncoherent detection. ITTC will explore a fundamentally different approach to designing noncoherent detection algorithms for CPM. The main idea is to quantify receiver complexity and performance in terms of real-world measures, and then optimize both at the same time; the result is the algorithm with the least complexity and the best performance. Another proposed area of research is a comprehensive synchronization/detection receiver based on popular Laurent-type models for CPM. Separate bits and pieces of such a receiver have been developed to-date, but a unified study and characterization of such a receiver does not yet exist.


Faculty Investigator(s): Erik Perrins (PI)

Student Investigator(s): Chowdhury Shahriar

Project Sponsors

Primary Sponsor(s): Nokia Siemens Networks

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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