Essays about: "Advantages digital modulation"

Found 5 essays containing the words Advantages digital modulation.

  1. 1. Digitally Controlled Oscillator for mm-Wave Frequencies

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

    Author : Rikard Gannedahl; Johan Holmstedt; [2018]
    Keywords : RF; RFIC; oscillator; DCO; mm-wave; Technology and Engineering;

    Abstract : In the fifth generation of mobile communication, 5G, frequencies above 30 GHz, so-called millimeter-wave (mm-wave) frequencies are expected to play a prominent role. For the synthesis of these frequencies, the all-digital phase locked loop (ADPLL) has recently gained much attention. READ MORE

  2. 2. Design and Simulation of Miscellaneous Blocks of an All-Digital PLL for the 60 GHz Band

    University essay from Linköpings universitet/Linköpings universitet/ElektroniksystemTekniska högskolan; Linköpings universitet/Linköpings universitet/ElektroniksystemTekniska högskolan

    Author : Hadiyah Butt; Manjularani Padala; [2013]
    Keywords : ADPLL; PLL; DCO; TDC;

    Abstract : A phase-locked loop commonly known as PLL is widely used in communication systems. A PLL is used in radio, telecommunications, modulation and demodulation. It can be used for clock generation, clock recovery from data signals, clock distribution and as a frequency synthesizer.Most electronic circuits encounter the problem of the clock skew. READ MORE

  3. 3. Investigation of the chirp properties of DFB-EAM’s for high speed baseband and RoF transmission links

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

    Author : Miguel Olmedo Iglesias; [2012]
    Keywords : ;

    Abstract : The ever increasing bandwidth demands driven by an explosion in the mobile device market calls for more and more optical and wireless convergence due to the ability of optical communication systems to transport larger amounts of information to longer distances. Optical modulators are in charge of performing the electrical-to-optical domain conversion, which place them as one of the critical components in optical communication systems. READ MORE

  4. 4. Analysis of LTE Radio Frame by eliminating Cyclic Prefix in OFDM and comparison of QAM and Offset-QAM

    University essay from Linnéuniversitetet/Institutionen för datavetenskap, fysik och matematik, DFM; Linnéuniversitetet/Institutionen för datavetenskap, fysik och matematik, DFM; Linnéuniversitetet/Institutionen för datavetenskap, fysik och matematik, DFM

    Author : Vinodhkumar Selvakumar; Samuel Nemalladinne; Premkumar Arumugam; [2012]
    Keywords : OFDM; LTE; OQAM; QAM; FBMC; FIlter Bank Multicarriers;

    Abstract : Spectral efficiency is the key factor for the development of future wireless communications. Orthogonal Frequency Division Multiple Access (OFDMA) is the multiple access technology used at physical layer of latest wireless communication technologies. READ MORE

  5. 5. Ultra Wide Band Sigma-Delta modulator in CMOS090

    University essay from Linköpings universitet/Institutionen för systemteknik

    Author : Fredrik Jonsson; [2004]
    Keywords : Electronics; Sigma-Delta modulator; Ultra Wide Band; UWB; Excess feedback delay; CMOS090; Elektronik;

    Abstract : Today the frequency spectrum is full of wireless standards. The most common technique being used is the frequency modulation. To take advantage of this and the technology improvement a new wireless communication standard is being developed. This standard is using a low power impulse modulation method, allowing it to overlap with other standards. READ MORE