Multi carrier and spread spectrum systems phần 8 ppt

... (dBm) Bandwidth (MHz) QPSK 16-QAM 64-QAM 1/2 3/4 1/2 3/4 2/3 3/4 1.5 −91 89 84 82 − 78 −76 1.75 −90 87 83 81 −77 −75 3 88 86 81 −79 −75 −73 3.5 87 85 80 − 78 −74 −72 5 86 84 −79 −77 ... 86 84 −79 −77 −72 −71 6 85 83 − 78 −76 −72 −70 7 84 82 −77 −75 −71 −69 10 83 81 −76 −74 −69 − 68 12 82 80 −75 −73 −69 −67 14 81 −79 −74 −72 − 68 −66 20 80 − 78 −73 −71 −66 −65 214 Applications Frame ......

Ngày tải lên: 09/08/2014, 19:22

... variations of the composite received signal. Multi- Carrier and Spread Spectrum Systems K. Fazel and S. Kaiser  2003 John Wiley & Sons, Ltd ISBN: 0-470 -84 899-5 References 13 [41] Saltzberg, B.R., ... “Introduction to spread- spectrum anti -multi- path techniques and their application to urban digital radio,” Proceedings of the IEEE, vol. 68, pp. 3 28 353, March 1 980...

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... in spread spectrum communications,” Proceedings of the IEEE, vol. 76, pp. 657–671, June 1 988 . [35] Ormondroyd R.F., Lam W.K. and Davies J., “A multi- carrier spread spectrum approach to broadband underwater ... generation for one user Multi- Carrier Spread Spectrum 43 data symbols spread data symbols spreading code serial- to- parallel converter 01 • L − 1 sub -carrier...

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... sub-bands to avoid adjacent Multi- Carrier and Spread Spectrum Systems K. Fazel and S. Kaiser  2003 John Wiley & Sons, Ltd ISBN: 0-470 -84 899-5 MC-CDMA 77 024 6 8 101214 16 18 20 E b /N 0 in dB 10 −5 10 −4 10 −3 10 −2 10 −1 10 0 BER MRC EGC ZF MMSE MC-CDMA ... (GLOBECOM’96), London, UK, pp. 1 784 –1 788 , Nov. 1997. [ 28] Kondo S. and Milstein L.B., “Performance of...

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... constellation and FEC scheme but also on the amount of reference and pilot symbols spent to guarantee reliable synchronization and channel estimation. Multi- Carrier and Spread Spectrum Systems K. Fazel and ... 679–691, April 2000. Multi- Carrier Modulation and Demodulation 121 Total channel bandwidth Guard band DC sub -carrier (not used) Unused sub-carriers i.e.Virtu...

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... evaluate and optimize the channel estimation, a multi- carrier reference scenario typical for mobile radio systems is defined. The fre- quency band has a bandwidth of B = 2 MHz and is located at a carrier ... fading 1/2 3.1 dB 3.6 dB 5.4 dB 2/3 4.9 dB 5.7 dB 8. 4 dB QPSK 3/4 5.9 dB 6 .8 dB 10.7 dB 5/6 6.9 dB 8. 0 dB 13.1 dB 7 /8 7.7 dB 8. 7 dB 16.3 dB 1/2 8. 8 dB 9.6 dB 11.2 d...

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... performance of multi- carrier and multi- carrier CDMA transmission with a high number of sub-carriers in the presence of low cost oscillators with phase noise and HPAs with both AM/AM and AM/PM non- linear ... on MC-CDMA systems can be found in [77] and [81 ]. 4.7.2 Non-Linearities Multi- carrier modulated systems using OFDM are more sensitive to high power ampli- fier (HP...

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... asymmetrical transmission capacity, and whether they Multi- Carrier and Spread Spectrum Systems K. Fazel and S. Kaiser  2003 John Wiley & Sons, Ltd ISBN: 0-470 -84 899-5 222 Applications DVB-T base ... 288 16-QAM1/2 288 bits = 48 RS Symb. 2 ×32 RS Symb. = 384 bits 576 16-QAM3/4 432 bits = 72 RS Symb. 2 ×40 RS Symb. = 480 bits 576 64-QAM1/2 432 bits = 72 RS Symb. 3 ×32 RS...

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... Broadband System MC Multi- Carrier MC-CDMA Multi- Carrier CDMA MC-DS-CDMA Multi- Carrier DS-CDMA MCM Multi- Carrier Modulation MC-SS Multi- Carrier Spread Spectrum MC-TDMA Multi- Carrier TDMA (OFDM and ... 21–22 Multi- carrier FDMA (MC-FDMA) 94–105 Multi- carrier modulation and demodulation 116–123 Multi- carrier spread spectrum (MC-SS) 8 10, 41–44 Mul...

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