• Harman D.
  • Otterbach J.
  • Tavares M.
  • Zivkovic M.

5G ADVANCED RECEIVER; TURBO-SIC FOR UPLINK BOOSTING Today's 4G deployments suffer from overloaded uplink channels in MegaCity applications. By assigning the same time-frequency resources to several users simultaneously higher uplink capacity can be provided for wireless networks. To decode this superposed signal of each user, advanced signal processing at the base-station receiver can solve this issue. One promising algorithm for multi-user uplink is Turbo- Successive Interference Cancelation (Turbo-SIC) applicable to SU/MU-MIMO and CoMP in cellular networks. Turbo-SIC is also a promising key enabler for new upcoming 5G applications such as massive IoT, where massive number of devices has to be supported.

Recent Publications

January 01, 2018

Fair Dynamic Spectrum Management for QRD-Based Precoding with User Encoding Ordering in Downstream G.fast Transmission

In next generation DSL networks such as G.fast, employing discrete multi-tone transmission in high frequencies up to 212 MHz, the crosstalk among lines reaches very high levels. To precompensate the crosstalk in downstream transmission, QRD-based precoding has been proposed as a near-optimal dynamic spectrum management (DSM) technique. However, the performance ...

January 01, 2018

Practical Mitigation of Passive Intermodulation in Microstrip Circuits

This paper presents new experimental evidence and a novel practical approach for mitigation of passive intermodulation (PIM) in microstrip circuits fabricated on commercial printed circuit board laminates. The mechanisms of distributed PIM in microstrip circuits are reviewed and a phenomenology of PIM generation due to locally enhanced electromagnetic fields at ...

January 01, 2018

Efficient Cooperative HARQ for Multi-Source Multi-Relay Wireless Networks

In this paper, we compare the performance of three different cooperative Hybrid Automatic Repeat reQuest (HARQ) protocols for slow-fading half-duplex orthogonal multiple access multiple relay channel. Channel State Information (CSI) is available at the receiving side of each link only. Time Division Multiplexing is assumed, where each orthogonal transmission occurs ...