Sökning: "Orthogonal Frequency Division Multiplexing OFDM"

Visar resultat 1 - 5 av 49 uppsatser innehållade orden Orthogonal Frequency Division Multiplexing OFDM.

1. 1. Integrated Sensing and Communicationusing OFDM and Stepped FMCWSignals : Proof-of-Concept and Evaluation with Software DefinedRadios

   Master-uppsats, Blekinge Tekniska Högskola/Fakulteten för datavetenskaper

   Författare :Sai Chetan Poluri; Tejaswi Dunuka; [2023]
   Nyckelord :5G and 6G Communications; FMCW; GNU Radio; ISAC; OFDM; SDR; Sensing; JSAC;

   Sammanfattning : The thesis work shows the implementation of sensing and communication, so a basic knowledge of analog and digital communication systems is needed to understand this paper Background. With the increase in smart devices, the bandwidth requirements are increased, which created congestion in the radio spectrum resources. LÄS MER

3. 2. Extension of an Existing Simulator for Cellular Communication with Support for 5G NR : Porting of MIMO Channel Estimation Methods form a prototype to an existing Link-Level Simulator

   M1-uppsats, Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013); Karlstads universitet/Avdelningen för datavetenskap

   Författare :Majed Haj Hussein; Abdulsalam Alnahawi; [2022]
   Nyckelord :5G NR; Channel Estimation; MIMO; OFDM; DMRS;

   Sammanfattning : Multiple Input Multiple Output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM) are two efficient technologies used to achieve higher data rate, lowlatency, robustness against fading used in 5G New Radio (NR). At the receiver end,the data arrives distorted due to disturbance during transfer over the wireless channel. LÄS MER

4. 3. Importance Sampling in Wireless Communication Systems with Ultra-Low Error Rates

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Bharat Maheshwari; Yewen Zhou; [2022]
   Nyckelord :error region; Monte Carlo; importance sampling; rejection sampling; Kullback-Leibler divergence.; Technology and Engineering;

   Sammanfattning : Simulation mimics the behaviour of real world processes or the system over time. It helps us to understand the impact of modification and the effect of introducing various interventions to a system. LÄS MER

5. 4. Overcoming Inter-carrier-interference in OFDM System

   Magister-uppsats, Linköpings universitet/Kommunikationssystem

   Författare :Fukang Guo; Luoan Lu; [2021]
   Nyckelord :ICI; OFDM; TDCP; FDCE; Windowing-OFDM; 5G;

   Sammanfattning : This master thesis aims for Inter-carrier interference (ICI) mitigation in orthogonal frequency division multiplexing (OFDM) system by considering designs of frequency domain cyclic extension(FDCE) and optimal windowing pulse shape. Although OFDM system has been put forward in the 1970s, it has just emerged in 4G. LÄS MER

7. 5. Time Synchronization for Full-Duplex Communications

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

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

   Sammanfattning : 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. LÄS MER