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.
Posts Categorized / MIMO and Multiuser
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
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
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,
Reserving spatial dimensions proved to be very efficient for PAR reduction. With a high numbers of transmit antennas, the corresponding rate loss can be neglected.