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16 13R11A04H1 KOMIRISHETTY AKHILA 17 13R11A04H2 KOPPU MOUNIKA 18 13R11A04H3 KANNE RAVI KUMAR 19 13R11A04H4 KARRA VINEELA 20 13R11A04H5 KANUKALA SIDDHARTH Group 5: 21 13R11A04H6 KATHI SHIVARAM REDDY 22 13R11A04H7 KOMANDLA SRIKANTH REDDY 23 13R11A04H8 KONDAM PADMA 24 13R11A04H9 KRISHNA ASHOK MORE 25 13R11A04J0 LINGAMPALLY RAJASRI Group 6: 26 13R11A04J1 M ROHITH SAI SHASHANK 27 13R11A04J2 M TANVIKA 28 13R11A04J3 MALIHA AZAM 29 13R11A04J4 MANSHA NEYAZ 30 13R11A04J5 MATTA SRI SATYA SAI GAYATHRI Group 7: 31 13R11A04J6 MD RAHMAN SHAREEF 32 13R11A04J7 MEESALA SAI SHRUTHI 33 13R11A04J8 P G CHANDANA 34 13R11A04J9 PALLE AKILA 35 13R11A04K0 PERNAPATI YAMINI
Group 8: 36 13R11A04K1 POLISETTY VEDA SRI 37 13R11A04K2 REGU PRAVALIKA 38 13R11A04K3 R RITHWIK REDDY 39 13R11A04K4 RAMYA S 40 13R11A04K5 SURI BHASKER SRI HARSHA Group 9: 41 13R11A04K6 TANGUTOORI SIRI CHANDANA 42 13R11A04K7 THIPPARAPU AKHIL 43 13R11A04K8 UDDALA DEVAMMA 44 13R11A04K9 VALASA SHIVANI 45 13R11A04L0 VEPURI NAGA TARUN SAI Group 10: 46 13R11A04L1 VISWAJITH GOVINDA RAJAN 47 13R11A04L2 YENDURI YUGANDHAR 48 13R11A04L3 M SAI KUMAR 49 14R18A0401 MODUMUDI HARSHITHA 46 13R11A04L1 VISWAJITH GOVINDA RAJAN
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DC COURSE FILE
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GEETHANJALI COLLEGE OF ENGINEERING
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Convolution Codes: Encoding, decodi
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III. To inculcate positive attitude
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7. Importance of the course and how
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DC 12: Compute the power and bandwi
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10. Course mapping with PEO’s and
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13.Micro plan : Sl. no Unit No. Tot
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14.Detailed Notes UNIT 1 : Elements
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A communication system may transmit
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the wavelength is extremely long, m
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asic elements of digital communicat
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4. Channel introduced many types of
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5. Bandwidth is another scarce reso
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Pulse Code Modulation ‣ PCM gener
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77777333333333333333333333333333333
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• The most common technique for s
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Pulse Code Modulation (PCM) : • P
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Figure 3.11 Illustration of the qua
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Quantization (nonuniform quantizer)
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Time-Division Multiplexing(TDM):
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Let m n where T The error signal is
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3. Simplify receiver design Because
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Figure 3.27 Block diagram illustrat
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Adaptive Differential Pulse-Code Mo
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ASK, OOK, MASK: • The amplitude (
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Frequency Shift Keying: • One fre
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s t Acos 2f ct 3 Acos 2f
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QAM and QPR: • QAM is a combinati
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Generation and Detection of Coheren
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Figure 6.29 Signal-space diagram fo
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UNIT 3 Base Band Transmission And O
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• The tails of hI(t) decay as 1/|
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• precoding d b d k k k2 symbol 1
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h( t) N 1 n w n sin c t T b
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• Equalization : to compensate fo
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e n y n 2E en 2E en 2Eenxnk
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- Flexibility - Same H/W may be tim
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Interpretation of Eye Diagram:
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The set of source symbols is called
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We will usually neglect to mention
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Note that if Condition1 is satisfie
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where dmin is the minimum Hamming d
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Linear Block Codes - example 1: •
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• S null can be represented by it
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G 1 0 I | P 0 0 0 1 0 0 0 0
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• Compared with the systematic co
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Convolutional Codes ◊ The encoder
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Convolution Codes ‣ Encoding, ‣
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x m m ''' j j 2 j Here each messa
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Representing convolutional codes: C
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- encoder state diagram for (n,k,L)
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• For this reason the non-survive
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sequence is 1 1 0 0 0 0 0 (why?). N
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Error Correction: • If there is n
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correct:1+1+2+2+2=8;8 ( 0.11) 0.88
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Motivation: Performance of Turbo Co
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Performance as a Function of Number
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General Model of Spread Spectrum Sy
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Slow and Fast FHSS: • Frequency s
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- 10 bit spreading code spreads sig
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Direct Sequence Spread Spectrum Usi
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15.Additional Topics: Voice coders
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'Toll Quality' voice coders, such a
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The well-known Shannon-Hartley law
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its for a known permutation of the
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16. Question papers: B. Tech III Ye
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e received code word 110110. Commen
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17. Question Bank 1. (a) State and
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21. A Discrete Memory less Source (
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19. Unit wise Bits CHOOSE THE CORRE
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(d) 5 Answers 1.C 2.D 3.B 4.A 5.C 6
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(b) its capacity gets doubled (c) i
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(d) 6 5. The cascade of two binary
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CHOOSE THE CORRECT ANSWER 1. The mi
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2.C 3.C 4.A 5.D 6.C 7.B 8.B 9.B 10.
Page 163 and 164: (b) H(X/Y)=1bit/message (c) H(X,Y)=
Page 165 and 166: (d) log m bits/symbol 6. Theencoder
Page 167 and 168: 3. .Under error free reception, the
Page 169 and 170: 10.B Code No: 56026 Set No. 1 JAWAH
Page 171 and 172: code No: 56026 Set No. 2 JAWAHARLAL
Page 173 and 174: B) (Power required)/( Minimum Band
Page 175 and 176: A) 5 B) 4 C) 2 D) 3 3. Which of the
Page 177 and 178: Code No: 56026 Set No. 2 JAWAHARLAL
Page 179 and 180: A) maximum when the source is conti
Page 181 and 182: Code No: 56026 :2: Set No. 4 II Fil
Page 183 and 184: Code No: 07A5EC09 Set No. 2 JAWAHAR
Page 185 and 186: Cont…..2 Code No: 07A5EC09 :2: Se
Page 187 and 188: 8) For the data word 1110 in a (7,
Page 191 and 192: a) 0 bits b) 1 bit c) 2 bits d) inf
Page 195 and 196: a) increase with its certainty of o
Page 197 and 198: Code No: 07A5EC09 :2: Set No.4 10)
Page 199 and 200: Amplitude of 1v.This speech signal
Page 201 and 202: . Self Information c. Logarithmic m
Page 203 and 204: 75. What are the advantages and dis
Page 205 and 206: 22. Discussion Topics: Data transmi
Page 207 and 208: Applications and history Data (main
Page 209 and 210: o o Mesh network Wireless network A
Page 211 and 212: 25. STUDENTS LIST B.TECH III YEAR I
Page 213: 48 13R11A04L3 M SAI KUMAR 49 14R18A
Page 217 and 218: Unit 2 Pulse-Amplitude Modulation :
Page 219 and 220: Unit 3 Differential Pulse-Code Modu
Page 221 and 222: MISSING TOPICS UNIT 1 Hartley's law
Page 223 and 224: encoding the desired information an
Page 225 and 226: • f c denotes center frequency
Page 227 and 228: An interleaver installed between th
Page 229 and 230: Subject Contents 1.7. 1. Synopsis p
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