WCDMA Enhancements for Use Rapidly Moving Platforms Navy SBIR FY2012.2 Sol No.: Navy SBIR FY2012.2 Topic No.: N122-147 Topic Title: WCDMA Enhancements for Use Rapidly Moving Platforms Proposal No.: N122-147-0136 Firm: Broadata Communications, Inc. 2545 W. 237th Street, Suite K Torrance, California 90505-5229 Contact: Prachee Sharma Phone: (310) 530-1416 Web Site: www.broadatacom.com Abstract: Wideband Code Division Multiple Access (WCDMA) is the most recent generation of cellular phone technology that is being adopted for commercial, government, and military mission critical systems. One of the key enablers towards adoption of cellular technology in tactical environments is Mobile User Objective System (MUOS). MUOS is an Ultra High Frequency (UHF) SATCOM system the converts a commercial third generation (3G) Wideband Code Division Multiple Access (WCDMA) cellular phone system to a military UHF SATCOM radio system. In this work, the focus is to enhance the current design of MUOS WCDMA so that it can be applied to BS that are installed on rapidly moving platforms. This SBIR implements WCDMA algorithms for installation on rapidly moving platforms by inclusion of an ability to adapt the parameters such as slot-size, interleaving depth, channel prediction time scale as well as algorithms such as channel estimators based upon Rake receivers and Kalman filters to adapt to different RTT, channel coherence time, changes in propagation loss values and variability in Doppler-shifts. Benefits: Anticipated Benefits: These products will have the following competitive advantages, when compared with current state-of-the-art products such as traditional MANETs:  Ability to support tactical cellular network in rapidly moving environments  Ability to work in highly dynamic environment characterized by mobility at high velocities and accelerations as well as in time varying highly dynamic channel conditions  Compatibility with existing IP based systems Commercial Applications: Recently, the growth of satellite constellations used for commercial purposed has been phenomenal. The proposed system has applications in management of commercial satellite networks. Secure cellular communication systems not only can be leveraged through in satellite networks, but also in the land based systems. Communication capability in polar regions has become even more critical as the polar ice-caps are melting and areas so far unreachable by man-kind has suddenly become available for exploration.. The proposed cellular technology system could be deployed at enterprise levels to support various data-types and enforce usage policies. At a larger scale, network-providers can use the proposed WCDMA system for providing services to users travelling between different coverage areas frequently. Return