Essays about: "Frequency Division Duplex"

Showing result 6 - 10 of 10 essays containing the words Frequency Division Duplex.

1. 6. 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

3. 7. PHYSICAL LAYER SECURITY USING PSEUDO-RANDOM SEQUENCE KEY GENERATION

   University essay from

   Author : Srihari Arolla; Naga Venkata Sai Teja Gurrala; [2018]
   Keywords : Physical Layer Security; Bit Error Rate; Key Error Rate; Pseudo Random Generator; Secret Key.;

   Abstract : Nowadays, network security plays a major role in the field of wireless communications. Wired networks propagate electrical signals or pulses through cables. Whereas wireless signals propagate through the air. If wireless networks are left open and exposed to the outside world, there are high chances of being misused by others. READ MORE

4. 8. 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

5. 9. Performance of In-Band Full-Duplex for 5G Wireless Networks

   University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

   Author : Osama Al-Saadeh; [2016]
   Keywords : Wireless networks; In-band full duplex; Static-time division duplexing; Dynamic-time division duplexing; Interference mitigation techniques; small cell; 5G; mmWave bands; Beamforming; Interference cancellation.; Trådlösa nätverk; Inomband hel duplex; Statisk tidsdelning; Dynamisk tidsdelning; Störningsundertryckningsmetoder; Små celler; 5G; Millimetervågsfrekvenser; Lobformning; Störningseliminering.;

   Abstract : In-band full duplex is a new duplexing scheme that allows radio nodes to transmit and receive, utilizing the same frequency and time resources. The implementation of in-band full duplex was not feasible in practice, due to the effect of self-interference. But then, advances in signal processing made it possible to reduce this effect. READ MORE

6. 10. Pilot Contamination and Mitigation Techniques in Massive MIMO Systems

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

   Author : Vidit Saxena; [2014]
   Keywords : Multicell Systems; Massive MIMO; Pilot Contamination; LTE; Power Control; Resource Allocation; Channel Estimation; Precoding; Technology and Engineering;

   Abstract : A multi-antenna base station (BS) can spatially multiplex a few terminals over the same bandwidth, a technique known as multi-user, multiple-input multiple-output (MU-MIMO). A new idea in cellular MU-MIMO is the use of a large excess of BS antennas to serve several single-antenna terminals simultaneously. READ MORE