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Dr. Moshe Ran/ 1 1 " , . - PowerPoint . , . . . . . , . MostlyTek Ltd.. , "

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Dr. Moshe Ran / - 2 2 1 : [ 6] , /. , , (, ), , , . , , . . , , . 2 : [6 ] (ITU-R M.1225), , , : , , . , , , , , . (frequency-reuse), , , ACI,CCI , Erlang, GOS , . (handoff) 3 - Large Scale [9 ] , , 3 : reflection)), (diffraction), (scattering), (LOS), (NLOS), (outdoor) cost231,Okumura, Hata Walfish and Bertoni , , (Indoor), , Ray Tracing models

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Dr. Moshe Ran / - 2 3 4 - ) Small Scale 9 ) , (multipath), : delay spread, - Doppler spread , Saleh and Valenzuela (Indoor), SUI, ITU-B 5 : (3 ) (, ), : (AM), DSB, SSB -: (PM), (FM). : PAM, PDM, PPM, PFM, PCM, (Delta Modulation ) 6 (6 ) : BPSK, DPSK, QPSK, O-QPSK, : FSK, MSK, GMSK. : M-PSK, M-QAM, M-FSK. - (OFDM). Spread-Spectrum

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Dr. Moshe Ran / - 2 4 7 [6 ] (Multiple Access), FDMA TDMA, FHMA CDMA, OFDMA, MC-CDMA. . 8 (6 ) (Link Budget), . .

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Dr. Moshe Ran / - 2 5 Theodore S. Rappaport Wireless Communications - Principle and Practice", Chapter 1, 2, IEEE Press 1996 Rec. ITU-R M.1225, Guidelines for Evaluation of Radio Transmission Technologies for IMT-2000. Question ITU-R 39/8, 1997. "The Mobile Communications Handbook", Ed. Jerry D. Gibson., IEEE Press 1996 J.S. Lee and L.E. Miller, CDMA System Engineering Handbook, Artech House 1998. T. Ojanpera and R. Prasad Ed. Wideband CDMA for Third generation Mobile Communications, Artech House 1998.

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Dr. Moshe Ran / - 2 6 2.0 - M.1225 ITU , (frequency-reuse), , , ACI,CCI , , . , , , (handoff) , Trunking Erlang, GOS , . (handoff)

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Dr. Moshe Ran / - 2 7 ITU- M.1225 Telecommunication system Environment, market, regulation Customer care Total quality mng. Telecom mng. Network OAM Network Infrastructure Radio transmission technology Market impact, environment impact, customer perception, measurable performance RTT=radio transmission technology MA modulation ECC RF channel Duplexing Framing PHY channel structure and MUX

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Dr. Moshe Ran / - 2 8 Physical layer (PHY) Medium Access Control layer (MAC) Link Access control layer Layer 1 Layer 2 Layer 3 Transmission dependent Transmission interdependent Network layer: call control, mobility management, radio resource mng.

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Dr. Moshe Ran / - 2 9 Frame structures Duplexing technology RF Channel parameters MA technology PHY channel def. and multiplexing RTT Cons idera tions Radio transmis sion technolo gies modulation technology Sync. Requirements Spectrum efficiency requirements Source Coder Channel coding ECC BNI and SNI interfaces (Interworking) Radio Transmission Technology (RTT) Considerations M.1225 ( )

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Dr. Moshe Ran / - 2 10 1. MA: TDMA/FDMA/CDMA 2. : (LOS, NLOS ) . 3. : ( ), , (, , '). (, ) " . (Interleaving) . 4. Duplexing: FDD\TDD , . TDD /, FDD . 5. : (radio freq. channel) " , . 6. Framing: , duplexing 7.RF channel parameters: , ,

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Dr. Moshe Ran / - 2 11 (RTT) Spectrum efficiency - : , . Coverage efficiency: . . . : Coverage (range) efficiency : (capacity). " interference limited (capacity). Power efficiency: , . . ( ).

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Dr. Moshe Ran / - 2 12 (Access) (MAN, WWW ') : / (BTS) / (STS) : ( PMP) point-to-multipoint point-to-point (P2P) multipoint-to-multipoint ( mesh ) Ad-hoc networking (" " BTS, , )

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Dr. Moshe Ran / - 2 13 (Access) LAN ?! LANACCESS WWW, PSTN 10Gbps" " 1- 2Mbps

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Dr. Moshe Ran / - 2 14 (Access)

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Dr. Moshe Ran / - 2 15 Base station BS , , Mobile Terminal MT MSC - PSTN Mobile Switching Center (MSC) BS MT - PSTN MT (CELL)

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Dr. Moshe Ran / - 2 42 CCI ( ) d Tx Rx P 0 d 0 Pr(d) d>d 0 " n path loss exponent : n=2 LOS- n=4 - -

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Dr. Moshe Ran / - 2 43 CCI ( ) - R BS BS D I i n D R D ( )

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Dr. Moshe Ran / - 2 44 S/I S / I > 18dB n=4 co-channel :

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Dr. Moshe Ran / - 2 45 ACI ( Near-Far ) BS f1,d1 , f2, d2 , f1f1 f2f2 , : S/I d1d1 d2d2 ACI ? - " BS - " "" , ACI

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Dr. Moshe Ran / - 2 46 : n=4 20 ACI - BS 52dB . MT . X . ( IF) 20dB/octav 6 SIN=0dB. . Channel allocation

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