Our MIMO research focuses on the treatment of imperfect channel information and a possible realization of UEP properties just as in the case of multicarrier transmission.  We consider multi-user bit loading, multi-user hierarchical modulation, LDPC coded hierarchical modulation.

Student:  Asif Ahmed Advisor: Prof. Dr.-Ing. Werner Henkel Time frame: Spring 2011         Description: The project had to aspects. We carried out first multi-antenna measurements of impulse noise in the 2.4 GHz range caused by car ignition and other sources. Additionally, a new circuit was design for wirelines impulse-noise measurements in common

Read more…

Student:  Maja Taseska Advisor: Prof. Dr.-Ing. Werner Henkel Time frame: Spring 2010         Description: The combination of multicarrier modulation (OFDM, DMT) and Multiple- Input Multiple-Output (MIMO) transmission significantly improves the quality and efficiency of modern communication systems. The peak-toaverage ratio problem in multicarrier modulation requires additional transmitter side processing which may get

Read more…

Student:  Vimtakhul Azis (master program FH Darmstadt) Advisor: Prof. Dr.-Ing. Werner Henkel Time frame: February – July 2003 Grants: We appreciate funding by Infineon       Description: The major drawback of multi-carrier transmission is the high peak-to-average power ratio of the time-domain signal resulting from the combination of many carriers (central limit theorem). Without countermeasures,

Read more…