Wolfgang Granzow
Qualcomm
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Wolfgang Granzow.
vehicular technology conference | 2009
Marc Werner; Christian Pietsch; Christoph A. Joetten; Christian Sgraja; Georg Frank; Wolfgang Granzow; Jeff Huang
eCall is a project of the European Commission for the improvement of transportation safety by providing rapid assistance to motorists involved in a collision anywhere in the European Union. In the event of a collision, the intended solution employs an in-band modem that transmits vehicle location, airbag deployment, and other relevant information timely and reliably from the in-vehicle system (IVS) over the cellular network voice channel to the public safety answering point (PSAP). This paper describes the requirements, system design and performance of the eCall in-band modem solution that was selected by 3GPP. Due to the employment of this solution in life-critical situations, transmission reliability and speed are of utmost importance. The effective transmission channel is characterized by the highly nonlinear speech codec, as well as radio channel impairments, constituting a challenge for the in-band transmission of digital data. Several innovative transmission concepts were developed for our eCall in-band modem solution to address this challenge.
Archive | 2006
Ivan Jesus Fernandez-Corbaton; Josef J. Blanz; Wolfgang Granzow
Archive | 2008
Kalle I. Ahmavaara; Lorenzo Casaccia; George Tsirtsis; Wolfgang Granzow
Archive | 2010
Armin Dekorsy; Wolfgang Granzow; Lu Zhao; Stefan Brueck
Archive | 2009
Pengjun Huang; Christian Pietsch; Christian Sgraja; Georg Frank; Christoph A. Joetten; Marc Werner; Wolfgang Granzow
Archive | 2011
Wolfgang Granzow; Xipeng Zhu; Miguel Griot
Archive | 2007
Kalle I. Ahmavaara; Vidya Narayanan; Wolfgang Granzow
Archive | 2010
Xipeng Zhu; Wolfgang Granzow; Adrian Edward Escott
Archive | 2010
Xipeng Zhu; Wolfgang Granzow
Archive | 2010
Christian Pietsch; Christian Sgraja; Christoph A. Joetten; Nikolai K. Leung; Marc Werner; Wolfgang Granzow