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Spectrum sharing in infrastructure based Cognitive Radio networks
Spectrum sharing in infrastructure based Cognitive Radio networks

... region. Nowadays, the most actual issue now is reforming of the existing frequency range for LTE deployment. Nowadays, the most common band - 900/1800 MHz, which in usual licensed for the GSM networks. The main disadvantage of infrastructure-based CRn is that they allows to allocate LTE channels in ...
1-3_GSM_CDMA_3G4G_08..
1-3_GSM_CDMA_3G4G_08..

... W-CDMA (Wide Band CDMA) Key features • Improved capacity and coverage (over second generation); thus, backward compatible – high frequency 2 GHz, wideband 150 MHz • High degree of service flexibility: multiple, parallel services per connection; efficient packet access • Operator flexibility: asynch ...
Wireless Technology and convergence
Wireless Technology and convergence

... Hotspots offer higher-speed Internet access than most cellular network’s data offering and cost less to build than cellular base station ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)

... out tasks that are related to air interface (Anonymous, n.d.). Moreover, this concept is effectively defined to be standardized by the prominent 3rd Generation Partnership Project (3GPP). In addition to this, the network elements that are the components of the system are carefully grouped into UTMS ...
Document
Document

... 3.5G 3.5G or HSDPA (High Speed Downlink Packet Access) is an enhanced version and the next intermediate generation of 3G UMTS. It comprises the technologies that improve the Air Interface and increase the spectral efficiency, to support data rates of the order of 30 Mbps. 3.5G introduces many new f ...
UMTS - Kleines Seminar
UMTS - Kleines Seminar

... Global roaming Quality of service Interoperability with 2G networks UMTS Tassilo Bassermann ...
3G Wireless Systems
3G Wireless Systems

... over small areas Up to 2 Mbps- fixed applications like office use Symmetrical/asymmetrical data transmission rates Support for both packet switched and circuit switched data services like Internet Protocol (IP) traffic and real time video ...
GSM Overview
GSM Overview

... #Access channel-as its name would suggest,is used by MS initially to access the network,e.g. at call initiation or in response to a paging message.Each Base Station may support 32 access channels per forward link paging channel and the MSs within a CeLL are pseudo-randomly ...
Turkish lottery agents move to 3G wireless mobile
Turkish lottery agents move to 3G wireless mobile

... technology and services company, providing innovative technology, creative content and superior service; one of the world’s largest commercial lottery operators and a market leader in gaming industry. ...
Communication Systems 11th lecture - uni
Communication Systems 11th lecture - uni

... December 1996 The UMTS Forum established. "European" WCDMA standard known as Universal Mobile Telecommunications System (UMTS) June 1997 UMTS Forum produces first report: "A regulatory Framework for UMTS" October 1997 ERC decided on UMTS core band. January 1998 ETSI meeting: W-CDMA and TD-CDMA propo ...
cellular - D
cellular - D

...  More sensitive to noise/interference ...
Get Paper
Get Paper

... third generation (3G) mobile service under something called the IMT-2000 specification. 3G standards are required to meet the technical requirements of IMT-2000 for speed and reliability. The most common 3G standard today is called Universal Mobile Telecommunications System (UMTS) and is based on re ...
Chapter 6 slides, Computer Networking, 3rd edition
Chapter 6 slides, Computer Networking, 3rd edition

...  Radio cell: a geographical coverage area in ...
compairative_study_gsm_cdma_gprs
compairative_study_gsm_cdma_gprs

... Reduced Background Noise and Interference Rapid Deployment ...
Chapter 13: Wireless Networks
Chapter 13: Wireless Networks

... Communication facilities must be installed at low initial cost. The same information must be broadcast to many locations. ...
www.cs.karelia.ru
www.cs.karelia.ru

... an unlicensed wireless network to which they are connected, the UNC and handset facilitate roaming back to the licensed outdoor network. This roaming process is completely transparent to the subscriber. HANDOVER: If a subscriber is on an active GSM voice call or GPRS data session when they come with ...
5. Fixed and mobile convergence
5. Fixed and mobile convergence

... Fixed and Mobile Convergence (FMC) is concerned with the provision of network and service capabilities, which are independent of the access technique. This does not necessarily imply the physical convergence of networks. It is concerned with the development of converged network capabilities and supp ...
Mobile Communications - Universitas Hasanuddin
Mobile Communications - Universitas Hasanuddin

... already many (proprietary) products available in the beginning ...
Wireless data transfer – GSM
Wireless data transfer – GSM

... Data transfer in GSM • The "data over cellular" bearer services are part of the Phase 2 implementation of GSM • The basic data transfer technology is called CSD (Circuit Switched Data) • A GSM network’s data transfer facility allows the digital equivalent of modem transmissions - known as data stre ...
Mobile Communications
Mobile Communications

... already many (proprietary) products available in the beginning ...
report_698430005
report_698430005

... for Web players ...
FirstNet: Tech Terms 101
FirstNet: Tech Terms 101

... mobile web access, IP telephony, gaming services, high-definition mobile TV, video conferencing, 3D television, and cloud computing. LTE: commonly marketed as 4G LTE. It is a standard for wireless communication of high-speed data for mobile phones and data terminals. It is based on the GSM/EDGE and ...
Access to Information from Anyplace, Anytime
Access to Information from Anyplace, Anytime

... Each of the devices is given a “Chipping code” this is known by the device and the base station. This chipping code is then used to identify the signal and allows the BS to receive the signal The chipping code is used to adjust the frequency of data transferred during the transfer The essential poin ...
Power Control
Power Control

... • Spectrum and deployment flexibility  Scaleable bandwidth: 1.25,2.5,5,10,15,20 MHz  Both TDD and FDD modes ...
PCS - UMTS
PCS - UMTS

...  Able to pinpoint a device and direct services to it.  Mostly to be used for “Push” services  Increased data rate  Maximum 2048Kbps  Operational  in Europe by 2002  Japan 2001 (this was achieved)  Worldwide usage by 2005 (not going to happen) ...
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UMTS

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