Dissertation: Trellis-Based Joint Data/Channel Estimation for Differentially Encoded SISO and MIMO Systems.

Dissertation: Channel Coding in Molecular Communication.

Dissertation: Binäre Superpositionsmodulation beschränkter Sequenzen und ihre Anwendung in der optischen Unterwasserkommunikation.

Dissertation: Zuverlässigkeitsbasierter Cross-Layer-Entwurf digitaler Übertragungssysteme.

Dissertation: Hybrid Microwave/Free-space Optical Transmission in the Maritime Environment.

Dissertation: Multi-Dimensional Channel Estimation for MIMO-OFDM.

Dissertation: Reliability Information in Channel Decoding: Practical Aspects and Information Theoretical Bounds.

Dissertation: Spatial Diversity in MIMO Communication Systems with Distributed or Co-located Antennas.

Dissertation: On the Coexistence of Bluetooth and WLAN for On-Board Infotainment Applications

Dissertation: Sonar Signal Design and Evaluation with Emphasis on Diver Detection.

Dissertation: Adaptiver Interleave-Divison Mehrfachzugriff (IDMA) mit Anwendung in der Mobilfunkkommunikation.

Dissertation: Joint Communication and Positioning based on Interleave-Division Multiplexing.

Dissertation: Low-Density Hybrid-Check Coded Superposition Mapping and its Application in OFDM and MIMO.

Dissertation: Superposition Mapping & Related Coding Techniques.

Dissertation: Adaptive Multi-user MIMO Resource Allocation for Uplink DFT-precoded OFDMA.

Dissertation: Adaptive Precoding and Resource Allocation in Cognitive Radio Networks.

Dissertation: Modellbasierte akustische Entfernungsbestimmung  und Positionierung in Meeren.

Dissertation: Autonomous Swarm Navigation.