Essays about: "umts lte"

Showing result 6 - 10 of 25 essays containing the words umts lte.

  1. 6. Energy-Efficient Vertical Handovers

    University essay from KTH/Kommunikationssystem, CoS

    Author : José María Rodríguez Castillo; [2013]
    Keywords : Vertical Handover; Offload; LTE; 4G; WLAN; Wi-Fi; Energy consumption; Energy savings; Energy-efficient; Handover; IEEE 802.11; Vertikal Handover; Avlastning; LTE; 4G; WLAN; Wi-Fi; Energiförbrukning; Energibesparingar; Energieffektiv; IEEE 802.11; Smartphone; Batteriets livslängd;

    Abstract : Recent studies have shown that there are currently more than 1.08 billion of Smartphones in the world, with around 89% of them used throughout the day. On average each of these users transfers more than 450 Mbytes per month via either a cellular network or a Wi-Fi network. READ MORE

  3. 7. Control traffic overhead for VoIP over LTE

    University essay from KTH/Kommunikationssystem, CoS

    Author : Syed Ghazanfar Salari; [2012]
    Keywords : LTE; VoIP capacity; Physical Downlink Control Channel PDCCH ; Control Channel Elements CCE ; indoor hotspot; scheduling concepts; openWNS simulator; performance evaluation;

    Abstract : With increasing technological advancements more sophisticated mobile devices are being used by end-users. Third generation (3G) mobile communication systems such as Universal Mobile Telecommunication System (UMTS) are not able to satisfy the rising demand for higher throughputs and low latencies. READ MORE

  4. 8. Channel estimation in mobile wireless systems

    University essay from KTH/Signalbehandling

    Author : Pazi Alli Idd; [2012]
    Keywords : Time-variant channel; Discrete Prolate Spheroidal Sequences DPSS ;

    Abstract : The demands of multimedia services from mobile user equipment (UE) for achieving high data rate, high capacity and reliable communication in modern mobile wireless systems are continually ever-growing. As a consequence, several technologies, such as the Universal Mobile Telecommunications System (UMTS) and the 3rd Generation Partnership Project (3GPP), have been used to meet these challenges. READ MORE

  5. 9. Performance Evaluation of Packet Scheduling Algorithms for LTE Downlink

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Ömer Arslan; Olufemi Emmanuel Anjorin; [2012]
    Keywords : LTE; 3GPP; OFDMA; Downlink Scheduling; CQI;

    Abstract : Long Term Evolution (LTE) of the Universal Mobile Telecommunications System (UMTS) is designed to revolutionize mobile broadband technology with key considerations of higher data rate, improved power efficiency, low latency and better quality of service. It promises high peak data rates of 100 Mbps downlink and 50 Mbps uplink transmissions and can operate in different bandwidths ranging from 1. READ MORE

  6. 10. Interference Management in LTE-Advanced Heterogeneous Networks Using Almost Blank Subframes

    University essay from KTH/Signalbehandling

    Author : Hisham El-Shaer; [2012]
    Keywords : ;

    Abstract : Long term evolution (LTE) is the standard that the Third-generation Partnership Project (3GPP) developed to be an evolution of UMTS. LTE offers higher throughput and lower latency than UMTS and this is mainly due to the larger spectrum used in LTE but in terms of spectrum efficiency LTE does not offer a lot of improvements compared to UMTS. READ MORE