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From EQs 1, 2 and 3 6  "[H\InTsUP  0` 33PP` 3333` ___MMM` 13` 333fpKNāvI` j@v۩ῑ΂H` Q_{>?" dd@,?n<d@ `7 `2@`7``2 n?" dd@   @@``PR    @ ` ` p>>   H N (  H  H <" F A   H Td" F A   H <D"U_ F A   H THd">& F A   H Np "P F A   H <t "p F A   H C x?d?"bUv F A    H 6D "U  X Click to edit Master title style!! (  H 00 "   RClick to edit Master text styles Second level Third level Fourth level Fifth level!    S >  H 6 "@n VN___PPT90(@@ T**   H 6" "@`   F* P  H 6 ' "`` H@___PPT9"@ t*, # H  BA ;??" ;B H s *޽h ? 33z33y___PPT10Y+D=' = @B +  Blends 0 :2p( D<0   TF jJjJ ?D   F  V*   l  TF jJjJ ?\ n F VN___PPT90(@@ r*$      p  01 ?SLU F >  TF gֳgֳ ?  F  RClick to edit Master text styles Second level Third level Fourth level Fifth level!    S    ZjJjJ ? D   F  V*   f  ZP!F jJjJ ? \ ` H@___PPT9"@ t*&"     H  0~ηo? ? ̙3380___PPT10.۪q 0(  | H  0~ηo ? ̙3380___PPT10.q 0 L c(  L x L c $% H >  r L S % H  `    1 L T,'??8 ?Principles of Wireless Networks K. Pahlavan and P. Krishnamurth@ *2@,# H L 0޽h ? 33z33___PPT10i.q@6+D=' = @B +  0 8 0(  8 x 8 c $ H U   x 8 c $X H    H 8 0޽h ? 33z33___PPT10i.u!+D=' = @B +  0 < 0(  < x < c $p H U   x < c $ H    H < 0޽h ? 33z33___PPT10i.u!+D=' = @B +  0 ( T (  T x T c $ H U   ~ T s *h H 1    T 0 TA ? ? H x !     T T ??P ( 0p  N (2)( *2H T 0޽h ? 33z33___PPT10i.u!+D=' = @B +  0 ( \ (  \ x \ c $, H U   ~ \ s *, H o    \ TP ?? H P  N (3)( *2 \ 0 TA ? ? H     H \ 0޽h ? 33z33___PPT10i.u!+D=' = @B +V 0 @ V(  @ H @ Z ??9o Using QPSK modulation and convolution coding, the IS-95 digital cellular systems require 3 dB < Sr < 9 dB. The bandwidth of the channel is 1.25 MHz, and the transmission rate is R = 9600 bps. Find the capacity of a single IS-95 cell. Solution: Using Equation (4.3) we can support: d**a  %` @   fA ? ?? | $ @  f ??zS @Problem 2: Capacity of One Carrier in a Single-Cell CDMA System2A* 6H @ 0޽h ? 33z3380___PPT10.Q0<  0 d L(  d x d c $K H U    d s *v H   "P@08XH d 0޽h ? 33z33___PPT10i.u!+D=' = @B +  0 h L(  h x h c $ R H U    h s *8[ H   "P@08XH h 0޽h ? 33z33___PPT10i.u!+D=' = @B +  0 l L(  l x l c $t H U    l s *ҵ H   "P@08XH l 0޽h ? 33z33___PPT10i.u!+D=' = @B +  0  p \(  p x p c $ H U    p s *ȋ H   "P@08X p 0 TA ? ? H      p T ??P   N (4)( *2 p T ͵ ??    VThe last part of EQ.# 4 is called Performance improving factor: K=(GAGV/Ho) = 4 (6 dB)W 2@    H p 0޽h ? 33z33___PPT10i.u!+D=' = @B +s 0 0D s(  D  D Z ??  mDetermine the multi-cell IS-95 CDMA capacity with correction for sectorization and voice activity. Use the numbers from Problem 2. Solution: If we continue the previous example with the new correction factor included, the range for the number of simultaneous users becomes 64 < M < 260.2 * < D  f ??'m XProblem 3: Capacity of One Carrier in a Multi-Cell CDMA System with Correction Factors2Y* NH D 0޽h ? 33z3380___PPT10.Qpa. 0 PH b(  H  H Z| ??n  RCompare the capacity of IS-95 CDMA with AMPS FDMA and IS-136 TDMA systems. For the CDMA system, assume an acceptable signal to interference ratio of 6 dB, data rate of 9600 bps, voice duty cycle of 50 percent, effective antenna separation factor of 2.75 (close to ideal 3-sector antenna), and neighboring cell interference factor of 1.67.S*S H  f ??3 z>Problem 4: Comparison of the Capacity of Different 2G Systems ?*?H H 0޽h ? 33z33___PPT10i.Q G+D=' = @B +n  0 }P  (      Z ??h 9For the IS-95 CDMA using Equation (4.4) for each carrier with W = 1.25 MHz, R = 9600 bps, Sr= 4 (6dB), Gv= 2 (50 percent voice activity). GA = 2.75, and Ho = 1.67 we have: For the IS-136 with a carrier bandwidth of Wc = 30 kHz, the number of users per carrier of Nu = 3, and frequency reuse factor of K = 4 (commonly used in these systems), each W = 1.25 MHz of bandwidth provides for For the AMPS analog system with carrier bandwidth of Wc = 30 kHz, and frequency reuse factor of K = 7 (commonly used in these systems), each W = 1.25 MHz of bandwidth provides for *****L    "  - . #R6 )SbZ p.~    fA ? ??     fA ? ??       fA ? ??(    T ??H FSolution"  *2 (H  0޽h ? 33z33___PPT10i.Q G+D=' = @B + 0 `  n(   t  Z ??HH   Determine the capacity of GSM for K = 3. Solution: For the GSM system with a carrier bandwidth of Wc = 200 kHz, the number of users per carrier of Nu = 8, and frequency reuse factor of K = 3 (commonly used in these systems), each W = 1.25MHz of bandwidth provides for ** 0 ,  Q,c/w   f ??3 z>Problem 4: Comparison of the Capacity of Different 2G Systems ?*?    fA ? ?? ,\ H  0޽h ? 33z33___PPT10i.Q G+D=' = @B +yx}|SGل`mɅqvo˦,`PR! 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