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Showing result 1 - 5 of 115 essays matching the above criteria.

1. 1. Evaluation of the Perceived Speech Quality for G729D and Opus : With Different Network Scenarios and an Implemented VoIP Application

   University essay from Linköpings universitet/Informationskodning

   Author : Louise Almér; [2022]
   Keywords : Compression; Codec; audio; speech quality; quality of experience;

   Abstract : Communication has always been a vital part of our society, and day-to-day communication is increasingly becoming more digital. VoIP (voice over IP) is used for real-time communication, and to be able to send the information over the internet must the speech be compressed to lower the number of bits needed for transmission. READ MORE

3. 2. Multipath Packet Scheduling for 5G Systems

   University essay from Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013); Karlstads universitet/Avdelningen för datavetenskap

   Author : Jonas Hammar; [2022]
   Keywords : MPTCP; 5G; scheduling; path asymmetry; Mininet;

   Abstract : Modern mobile phones often have multiple network interfaces. By utilising these interfaces concurrently, the user experience can be enhanced, e.g., increased performance, stability and reliability. READ MORE

4. 3. A Study on Data-driven Methods for Selection and Evaluation of Beam Subsets in 5G NR

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

   Author : Nic Ekman; Ilias Theodoros Skordas; [2022]
   Keywords : 5G; NR; telecom; telecommunications; ML; machine learning; algorithms; beam; widebeam; propagation; beamforming; subset; RAN; radio; radio environment; ericsson; Technology and Engineering;

   Abstract : 5G New Radio is the next generation of mobile networks and it comes with promises of ultra-high speeds, ultra-high reliability and ultra-low latency. This has posed a challenge for the engineers entrusted with the task of finding solutions which could fulfil the specification, and as a result, some promising areas have received increased attention in recent years. READ MORE

5. 4. Hand over process in a simulationenvironmentChallenges with radio network planning in simulation environments

   University essay from Uppsala universitet/Institutionen för informationsteknologi

   Author : Grim Moström; [2020]
   Keywords : ;

   Abstract : Quality of Service in Mobile Cellular Networks is an increasinglyimportant research field. Society is demanding higher datatransmission rates and better reception than ever before. As the generations of wireless protocols, e.g, 3G-5G, are going toward shigher data rates, their cell range, or reception area is however constantly decreasing. READ MORE

6. 5. An intelligent gateway for LoRaWAN coverage extension

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Robert Olsson; [2020]
   Keywords : lora; LoRaWAN; multihop; routing; gateway; bidirectional;

   Abstract : LoRaWAN is one of the most adopted low-power wide-area networks, which use theproprietary LoRa modulation developed by Semtech to provide high sensitivity at lowdata rates for long ranges. LoRaWAN providing coverage using single-hop gatewaysto thousands of end-devices (sensors) running on batteries. READ MORE