Sökning: "Cell Broadcast"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Cell Broadcast.

  1. 1. Evaluation and Optimization of LTE-V2X Mode 4 under Aperiodic Messages of Variable Size

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

    Författare :Md Mamunur Rashid; [2023]
    Nyckelord :LTE-V2X; aperiodic; variable size; CAM; Technology and Engineering;

    Sammanfattning : Vehicular networks connect vehicles for improved road safety and efficiency with the assistance of wireless information exchange. Vehicular networks are based on the frequent broadcast of awareness messages referred to as CAM (Cooperative Awareness Messages) or BSM (Basic Safety Message) in the ETSI and SAE standards, respectively. LÄS MER

  3. 2. Mobile-Based Early WarningSystems in Mozambique. : An exploratory study on the viability to integrate Cell Broadcast into disaster mitigation routines.

    Kandidat-uppsats, Uppsala universitet/Institutionen för informatik och media

    Författare :Douglas Ferreira Nogueira; [2019]
    Nyckelord :Public Warning Systems; Early warning Systems; Cell Broadcast; Mozambique; Disaster risk Management; Climate Change Adaptation; Emergency Response; Sistema de Aviso Prévio; Moçambique; Gestão de Calamidade; Mudança climatica; INGC; CENOE; INAM; DNGRH;

    Sammanfattning : Mozambique is one of the countries most affected by natural hazards in the world. Therefore it can benefit greatly from enhancements on its early warning system. LÄS MER

  4. 3. 4G LTE : eMBMS with MBSFN Service Simulation using OPNET

    Kandidat-uppsats, Mittuniversitetet/Avdelningen för informations- och kommunikationssystem

    Författare :Abdelrahman Walid; [2014]
    Nyckelord :3G; 3GPP; 4G; CoMP; CSI; CSI-IM; CSI-RS; eMBMS; eNB; EPC; EPS; E-UTRAN; GSM; HSPA; IGMP; IGRP; ITU-T; LTE; LTE-A; MAC; MBSC; MBSFN; MCE; MCS; MFN; MME; OFDM; OFDMA; OPNET; OSPF; PDN-GW; PDSCH; PMCH; PUCCH; PUSCH; QoS; SAE; SC-FDMA; S-GW; TDD; TD-SCMDA; UE; UTMS; WCDMA.;

    Sammanfattning : Long Term Evolution (LTE) known in the market as 4G LTE, it is an evolution of the GSM/UMTS standard. The overall aim of LTE was to provide a new radio access technology focusing on packet-switched data only. LTE has provided a new peak download rates, low data transfer latencies, and improved the support for mobility. LÄS MER

  5. 4. Channel Estimation Error Model for SRS in LTE

    Uppsats för yrkesexamina på avancerad nivå, KTH/Signalbehandling

    Författare :Pontus Arvidsson; [2011]
    Nyckelord :;

    Sammanfattning : In 3GPP long term evolution (LTE), sounding is used to gain a wideband estimate of the uplink channel. This channel estimate may then be used for several radio resource management related applications such as frequency selective scheduling and beam forming. LÄS MER

  7. 5. A Mobile Distributed System for Personal Security

    Master-uppsats, Institutionen för informationsteknologi

    Författare :Yang Guo; [2009]
    Nyckelord :;

    Sammanfattning : The goal of this system is to provide a location based alarm system through which customers can broadcast their last known position in emergency situations. Imagine that you are hiking in the forest alone and don’t know how to get back to your car, or you get lost driving to your friend’s home. LÄS MER