Essays about: "full duplex"

Showing result 11 - 15 of 30 essays containing the words full duplex.

1. 11. Time Synchronization for Full-Duplex Communications

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Ziyu Liu; Aamer Al-Hamwi; [2019]
   Keywords : Time Synchronization; In-band full-duplex; self-interference cancellation; Technology and Engineering;

   Abstract : In-band full-duplex has emerged as an attractive solution for significantly enhancing the throughput of wireless communication systems by doubling the spectrum efficiency compared to conventional half-duplex systems. However, the existence of self-interference is a significant barrier to operate full-duplex systems. READ MORE

3. 12. Characterization of Passive Intermodulation Distortion in MultiBand FDD Radio Systems

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Tomás Soares da Costa; [2019]
   Keywords : ;

   Abstract : Intermodulation distortion (IMD) is a phenomenon that results in generation of spurious distortion signals when two or more signals of different frequencies pass through a nonlinear system. In general, IMD occurs in active circuits of a radio system, however, passive wireless components such as filters, transmission lines, connectors, antennas, attenuators etc. READ MORE

4. 13. Full Duplex in a Military Scenario : Feasibility of Practical Implementation

   University essay from Linköpings universitet/Kommunikationssystem

   Author : Thomas Ranström; [2019]
   Keywords : full duplex; self-interference; cancellation;

   Abstract : In order to achieve Full Duplex (FD) communication, currently studied solutionsfor the commercial sector rely on advanced Self-Interferece Cancellation (SIC)techniques to remove the transmitted signal from the received one. This thesis expandsthe research of these techniques by evaluating their potential usage in militarycommunication scenarios where requirements and conditions are distinct,firstly, by identifying, categorizing and describing a set of previously proposedsic techniques and secondly, by performing a comprehensive simulation andanalysis of two suggested sic techniques as part of a FD transceiver. READ MORE

5. 14. Beamforming in LTE FDD for Multiple Antenna Systems

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Atef Hatahet; Ankit Jain; [2018]
   Keywords : Beamforming; FDD; MIMO; LTE; AOA; Technology and Engineering;

   Abstract : High data rate is still the most crucial factor in cellular systems, and with 5g approaching new techniques are studied to achieve higher bit rates. Using MIMO technology, the spatial domain was exploited through beamforming and multiplexing multiple users’ data together assured more spectrum efficiency which resulted in higher bit rates. READ MORE

6. 15. Scheduler Algorithms for MU-MIMO

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Wissam Moustafa; Richard Mugisha; [2017]
   Keywords : Scheduling; Beamforming; TDD; TM-8; SRS; Downlink; Round Robin; SU-MIMO; MU-MIMO.; Technology and Engineering;

   Abstract : In multi-user multiple input multiple output (MU-MIMO), the complexity of the base-station scheduler has increased further compared to single-user multiple input multiple output (SU-MIMO). The scheduler must understand if several users can be spatially multiplexed in the same time-frequency resource. READ MORE