Essays about: "UMTS and WiMAX"

Showing result 1 - 5 of 12 essays containing the words UMTS and WiMAX.

  1. 1. 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. 2. 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. 3. Performance Evaluation of LTE Physical Layer Using SC-FDMA & OFDMA

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Abdul Samad Shaikh; Khatri Chandan Kumar; [2011]
    Keywords : OFDMA; SC-FDMA; LTE; BER; PAPR;

    Abstract : Since past few decades different types of cellular networks were launched and went successful on the radio links such as WiMAX, that became very popular because of its high data rate (70Mbps) and support for providing wireless internet services over 50km distance. The UMTS Long Term Evolution (LTE) is an emerging technology in the evolution of 3G cellular services. READ MORE

  5. 4. MULTIPLE ANTENNA TECHNIQUES IN WiMAX

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Waseem Hussain Sandhu; Muhammad Awais; [2010]
    Keywords : MIMO; Diversity; Multiple Antenna Techniques; WiMax;

    Abstract : Now-a-days wireless networks such as cellular communication have deeply affected human lives and became an essential part of it. The demand to buy high capacity and better performance devices and cellular services has been rapidly increased. READ MORE

  6. 5. A study of security in wireless and mobile payments

    University essay from Institutionen för systemteknik

    Author : Ahmed Ali; [2010]
    Keywords : WLAN; 3G; GSM; Security; Mobile payments; Cryptography; UMTS;

    Abstract : Mobile payments are increasing in popularity in recent years. New mobile solutions are being developed in the form of new Internet capable mobile devices such as the IPhone and new wireless networks such as the LTE and WiMAX networks. READ MORE