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Using Viterbi Decoders in FH-CDMA Wireless Systems Based on Reed-Solomon Codes
|關鍵字:||FH-CDMA;跳頻分碼多工;Reed-Solomon Codes;里德所羅門碼||出版社:||電機工程學系所||引用:|| Y.R. Tsai and J.F. Chang, “Using frequency hopping spread spectrum technique to combat multipath interference in a multi-accessing environment,” IEEE Trans. Vehicular Technol., vol. 43, no. 2, pp. 211-222, May 1994.  G.K. Kaleh, “Frequency-diversity spread-spectrum communication system to counter bandlimited Gaussian interference,” IEEE Trans. Commun., vol. 44, no. 7, pp. 886-893, Jul. 1996.  G.-C. Yang and W.C. Kwong, “Frequency-hopping codes for multi-media services in mobile telecommunications,” IEEE Trans. Vehicular Technol., vol. 48, no. 6, pp. 1906-1915, Nov. 1999.  G.-C. Yang and S.-Y. Lin, and W.C. Kwong, “MFSK/FH-SSMA wireless systems with double-media services over fading channels,” IEEE Trans. Vehicular Tech., vol. 49, no.3, pp. 900-910, May 2000.  G.-C. Yang and W.C. Kwong, Prime Codes with Applications to CDMA Optical and Wireless Networks, Norwood, MA: Artech House, 2002.  D.J. Goodman, P.S. Henry, and V.K. prabhu, “Frequency-hopping multilevel FSK for mobile radio,” Bell Syst. Tech. J., vol. 59, no. 7, pp. 1257-1275, Sept. 1980.  M.-F. Lin, G.-C. Yang, C.-Y. Chang, Y.-S. Lin, and W.C. Kwong, “Frequency-hopping CDMA with Reed-Solomon code sequences in wireless communications” IEEE Trans. Commun., vol. 55, no. 11, pp. 2051--2055, Nov. 2007.  S.-M. Wu, G.-C. Yang, C.-Y. Chang, and W.C. Kwong, “Two-level FH-CDMA scheme for wireless communication systems under fading channel,” IEEE Trans. Commun., vol. 59, no. 1, pp. 38--44, Jan. 2011.  I.S. Reed, “k-th Order Near-Orthogonal Codes,” IEEE Trans. Inform. Theory, vol. IT-15, pp 116-117, Jan. 1971.  G.-C. Yang and J.-Y. Jaw, “Performance analysis and sequence designs of synchronous code-division multiple-access systems with multimedia services,” IEE Proc.-Commun., vol. 141, pp. 371-378, Dec. 1994.  S.B. Wicker and V.K. Bhargava (eds.), Reed-Solomon Codes and Their Applications, Piscataway, NJ: Wiley-IEEE Press, 1999.  S. Lin and D.J.Costello, Error Control Coding: Fundamentals and Applications, 2nd ed., Upper Saddle River, NJ: Pearson Education, 2004.  A.J. Viterbi, “Error bounds for convolutional codes and asymptotically optimum decoding algorithm,” IEEE Trans. Inform. Theory, vol. 13, no. 2, pp. 260--269, Apr. 1967.  G.D. Forney, Jr., “The Viterbi algorithm,” Proc. IEEE, vol. 61, no. 3, pp. 268--278, Mar. 1973.  R.J. McEliece, “On the BCJR trellis for linear block codes,” IEEE Trans. Inform. Theory, vol. 42, no. 4, pp. 1072--1092, Jul. 1996.  G.I. Turin, “Introduction to spread spectrum antimultipath techniques and their applications to urban digital radio,” Proc. IEEE, vol. 68, no. 3, pp. 328--353, Mar. 1980.  M.H Shen, and Papandreou-Suppappola, A., ''Multi-user schemes using nonlinear time-varying modulation,'' IEEE International Conference. vol. 4, pp. 941--944, May 2004.  G. R. Cooper and R. W. Nettleton, “A spread-spectrum technique for high-capacity mobile communications,” IEEE Trans. Veh. Tech., vol. 27, pp. 264-275, 1978.  T. Eng and L. B. Milstein, “Comparison of hybrid FDMA/CDMA systems in frequency selective Rayleigh fading,” IEEE J. Select. Areas Commun., vol. 12, pp. 938-951, 1994.  T. Mabuchi, R. Kohno, and H. Imai, “Multi-hopping and decoding of error correcting for MFSK/FH-SSMA systems,” IEICE Trans. Commun., vol. E76-B, pp. 874-884, Aug. 1993  G.-C. Yang and J.-Y. Jaw, “Performance analysis and sequence designs of synchronous code-division multiple-access systems with multimedia services”. IEE Proc.-Commun., Vol. 141, No.6, December 1994  D. Gorenstein and N. Zierler, “A class of cyclic linear error-correcting codes in Pm symbols,” J. Soc. Ind. Appl. Math., vol. 9, pp. 107-214, June 1964.  I. S. Reed and G. Solomon, “Polynomial codes over fields,” Inform. Contr., vol. 136, pp. 298-304, Aug. 1960.  F. J. MacWilliams and N. J. A. Sloane, The Theory of Error-Correcting Codes, North-Holland, New York, 1977.  I. S. Reed and G. Solomon, “Polynomial Codes over Certain Fields,” J. Soc. Ind. Appl. Math., 8: 300-304, June 1960.||摘要:||
Transmitting symbols of multiple data bits, coded modulation has recently been proposed to use atop of frequency-hopping code-division multiple-access (FH-CDMA) in order to increase data transfer rate. Reed-Solomon (RS) codes have been chosen as a possible candidate of the modulation codes in this kind of two-level FH-CDMA system because they support faster data rate than other coded-modulation schemes. In this thesis, a new method on the implementation of modulation and demodulation of the RS codes is proposed and analyzed. With the use of our specially ``pruned'' trellis and the Viterbi algorithm, the modulation and demodulation processes are simplified and so are their computational complexities. The performance and computational complexities of this RS/FH-CDMA system are analyzed and verified with computer simulation.
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