Fourth generation of mobile communication

Antenna is transmitted to transmitter output via. An antenna matching unit is a variable capacitor (15-50 pf) Maximum power is will be transmitted to antenna when transmitter output impedance match to antenna input impedance.

References 1. Mobile Cellular Tele communication By. Willium C.Y. Lec. 2. Cellular Concept By. V.H. Mcdonald 3. IEEE Spectrum (Year. 2 Vol. 39 Num. 6 June 2002) 4. System Survey Training Document By. Ericsson 5. Radio Engineering BY G.K. Mithal.

Web Sites 1. wwe.howcdmaworks.com 2. www.4Gintroduction.com 3. www.gsmworld.com 4. www.welly.com 5. www.grameenphone.conm 6. www.ericsson.com 7. www.3Gpp.com 8. www.banglalink.com 9. www.3gapp.com 10. www.gsm.com 11. www.3gcouk.com 12. www.ieee.com 13. www.totalemap.com 14. www.w2forumcom 15. www.edb4tel.com ITU International Telecommunications Union Kbps Kilobits per 'second MAN Metropolitan Area Network MSC Mobile Service Switching Centre MVNO Mobile Virtual Network Operators NMT Nordic Mobile Telephone NTIA National Telecommunications and Information OFDM Orthogonal frequency-division multiplexing OHG Operators Harmonization Group PAN Personal Area Network PCF Packet Control function PCS Personal Communications Services PDC Personal Digital Cellular PDSN Packet data Service Node PIM Personal Information Management PSD Packet Switched Data PSTN Public Switched Telephone Network QPSK Quadrature Phase Shift Keying PN Radio Network PNC Radio Network Controller S-UMTS Satellite UNITS UTRA Terrestrial Radio Access standard SDMA Space Division Multiple Access SIM Subscriber Identity Module