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Tutorial 3: Lawfully-Authorized Electronic Surveillance for Wireless Communications Subscribers: Requirements and Technology Overview

Tutorial Objective:
Voice and data wireless communication devices have became important and convenient way of
communications for most of the people around the world. In many places, the wireless cell
phones are used more than the traditional landline telephones. Therefore, it became essential to have the wireless communications systems support lawfully-authorized electronic surveillance (LAES) as the landline communications did for a long time. In 1994, the U.S. congress has passed a legislation known as the Communications Assistance for Law Enforcement Act (CALEA). CALEA requires both landline and wireless U.S. carriers to provide surveillance information to a lawfully authorized law enforcement monitoring center. The J-STD-025-A/B Standards define the interfaces between a telecommunication service provider (TSP) and a Law Enforcement Agency (LEA) to assist the LEA in conducting lawfully-authorized electronic surveillance. Wireless networks continuously change to support new voice/data Access Terminals (AT) and new Radio Access Networks (RAN). These rapid changes of the wireless systems create new challenges that require new innovations and forward thinking that will allow the electronic surveillance technology to keep up with the wireless technologies.

This tutorial is intended to give an overview of the Lawfully-Authorized Electronic Surveillance
on wireless communications through an outline that can show from network research and
development prospective. This outline describes the standards requirements and challenges on both to the wireless communications networks and to the surveillance technology. As a final
point, this tutorial is used to identify some important open areas that need further research in the
future.

Scope of topics:
1. Overview of the main system components of the wireless system interception functions:
Access, Delivery, Collection, Service provider administration, Law enforcement
administration.
2. Wireless communication electronic surveillance requirements.
3. Wireless interception levels.
4. Wireless network architecture and challenges.
5. Future wireless technologies and electronic surveillance systems.

Lecturer: Kafi Hassan is currently a senior Telecom Design Engineer for Sprint Nextel Corporation and he has been the lead engineer of the Network Development laboratory in Sterling, Virginia since 2006. From 1995 to 2006, he worked as a Member of Technical Staff in Bell Laboratories in Whippany, New Jersey, doing research and development in design and analysis of wireless communication systems. He has been a recipient of many professional honors, including the Bell Labs President’s Gold Award in 2000, the Bell Labs President’s Silver Award in 2002. He has B.S. and M.S. degrees in electrical engineering from University of North Carolina at Charlotte, and Ph.D. degree in electrical engineering from the Graduate Center of the City University of New York. Dr. Hassan’s current research interest include wireless security and surveillance, high performance network optimization algorithms, network architectures, evolutionary computation, mobile applications and resource management.

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