About the Author
Leonhard Korowajczuk has 40 plus years of experience in the telecommunication field working in R&D and Engineering areas. He graduated from UFRJ in 1969. His first assignments were in the Energy and FDM area at Standard Electrica S/A, followed by pioneer work on a PCM project at STC in England. He was part of the group that created the Telecom R&D Center (CPqD) in Brazil, where he did pioneer work on TDM switching. Next he joined Elebra S/A (later Alcatel do Brazil) where he was in charge of the Switching and Wireless Divisions. In 1992, he founded CelTec Tecnologia de Telecomunicações in Campinas, SP, Brazil, and in 1994 CelPlan Technologies in Reston, VA, USA, to provide design and optimization software for wireless operators. He was CTO of Comsat/Plexsys, where he was responsible for the development of advanced wireless equipment. Today he is CEO and CTO of CelPlan International, a company with subsidiaries in several countries, that provides design and optimization solutions for wireless operators. His team have done hundreds of designs of Cellular, PCS, WLAN, WiMAX and LTE networks worldwide. He is also the head of the Wi4Net division, which provides Citywide Video Surveillance Networks for Public Safety, using technologies like WLAN and WiMAX.