Essays about: "16 QAM"

Showing result 1 - 5 of 10 essays containing the words 16 QAM.

  1. 1. Graph Neural Networks and Learned Approximate Message Passing Algorithms for Massive MIMO Detection

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

    Author : Andrea Scotti; [2020]
    Keywords : ;

    Abstract : Massive multiple-input and multiple-output (MIMO) is a method to improvethe performance of wireless communication systems by having a large numberof antennas at both the transmitter and the receiver. In the fifth-generation(5G) mobile communication system, Massive MIMO is a key technology toface the increasing number of mobile users and satisfy user demands. READ MORE

  3. 2. A Study of Lattice Reduction Detection Techniques for LTE Systems

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

    Author : Liping Wang; [2016]
    Keywords : LTE; MIMO; Lattice Reduction; MMSE; ZF; ML; Kronecker Model; Rayleigh Fading Channel; Technology and Engineering;

    Abstract : MIMO (Multiple Transmit and Multiple Receive) antenna techniques are widely used in the most recent wireless communication standards. For example, LTE (Long-Term Evolution), WiMAX (Worldwide Interoperability for Microwave Ac- cess) and IEEE 802.11n have recently been rolled out across the world. READ MORE

  4. 3. PERFORMANCE ENHANCEMENT OF OFDM IN PAPR REDUCTION USING NEW COMPANDING TRANSFORM AND ADAPTIVE AC EXTENSION ALGORITHM FOR NEXT GENERATION NETWORKSPERFORMANCE ENHANCEMENT OF OFDM IN PAPR REDUCTION USING NEW COMPANDING TRANSFORM AND ADAPTIVE AC EXTENSION ALGORITHM FOR NEXT GENERATION NETWORKS

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : CLEMENT RANJITH ANTHIKKAD & IRFAN AHMED BAIG; [2013]
    Keywords : Orthogonal Frequency Division Multiplexing OFDM ; Peak-to-Average Power Ratio PAPR ; Complementary Cumulative Distribution Function CCDF ; Partial Transmit Sequence PTS ; Tone Reservation TR .;

    Abstract : This paper presents a new hybrid PAPR reduction technique for the OFDM signal, which combines a multiple symbol representations method with a signal clipping method. The clipping method is a nonlinear PAPR reduction scheme, where the amplitude of the signal is limited to a given threshold. READ MORE

  5. 4. Live Demonstration of Mismatch Compensation for Time-Interleaved ADCs

    University essay from Elektroniksystem; Tekniska högskolan

    Author : Johan Nilsson; Mikael Rothin; [2012]
    Keywords : interleaving; analog-to-digital converter; digital communication; FPGA; analog video; carrier recovery; synchronization; RF modulation; SDR14;

    Abstract : The purpose of this thesis is to demonstrate the effects of mismatch errors that occur in time-interleaved analog-to-digital converters (TI-ADC) and how these are compensated for by proprietary methods from Signal Processing Devices Sweden AB. This will be demonstrated by two different implementations, both based on the combined digitizer/generator SDR14. READ MORE

  6. 5. The Performance Evaluation of OFDM Based WLAN (IEEE 802.11a and 802.11g)

    University essay from Blekinge Tekniska Högskola/Sektionen för datavetenskap och kommunikation

    Author : Kamil Mohiuddin Shaikh; [2010]
    Keywords : OFDM; IEEE 802.11a and IEEE 802.11g;

    Abstract : ABSTRACT In the past decade there has been a steady growth in development and implementation of wireless Local Area Networks and emerged as in the largest sectors of the telecommunication industry. Wireless local area network (WLANs) provides connectivity, mobility, and much higher performance and achievable data rate. READ MORE