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標題: 跳頻分碼多工系統於符號非同步假設在衰退通道之系統效能分析
Performance Analysis of FH-CDMA Communication System with Symbol-Asynchronous Assumption under a Fading Channel
作者: 林宗祺
Lin, Tsung-Chi
關鍵字: FH-CDMA;跳頻
出版社: 電機工程學系所
引用: [1] J. G. Proakis, Digital Communications. McGraw-Hill, 1995. [2] T. S. Rappaport, Wireless Communications: Principles and Practice. Prentice Hall, 1996. [3] 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. [4] T. Eng and L. B. Milstein, “Comparison of hybrid FDMA/CDMA systems in frequency selective Rayleigh fading,” IEEE J. Select. Areas Commun., vol. 12, 99. 938-951, 1994 [5] 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. [6] Y.R. Tasi 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. [7] G.K. Kaleh, “Frequency-diversity spread-spectrum communication system to counter bandlimited Gaussian interference,” IEEE Trans. Commun., vol. 44, no. 7, pp. 886-893, July 1996. [8] 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. [9] 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. [10] G.-C. Yang and W.C. Kwong, Prime Codes with Applications to CDMA Optical and Wireless Networks, Norwood, MA: Artech House, 2002. [11] 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. [12] G.I. Turin, “Introduction to spread spectrum antimultipath techniques and their applications to urban digital radio,” Proc. IEEE, vol. 68, pp. 328-353, Mar. 1980. [13] M.P. Fitton, A.R. Nix and M.A. Brach, “Frequenvy hopping CDMA for flexible third generation wireless networks,” Global Telecommunications Conference, vol. 9, pp. 1504-1508, Nov. 1997. [14] G. Einarsson, “Address assignment for a time-frequency, coded, spread-spectrum system,” Bell Syst. Tech. J., vol. 59, no. 7, pp. 1241-1255, Sept. 1980. [15] S.B. Wicker and V.K. Bhargava (eds.), Reed-Solomon Codes and Their Applications, New York: Wiley-IEEE Press, Sept. 1999. [16] P.-H. Kuo, C.-C. Hsu, G.-C. Yang, and W.C. Kwong, “A new method of performance analysis for MFSK/FH-CDMA system,” submitted to IEEE Trans. Wireless Commun. [17] M. Schwartz, W.R. Bennett, and S. Stein, Communication Systems and Techniques, New York: McGraw-Hill, 1966. [18] S.Mari'c, “Construction of optimal frequency hopping sequences for minimizing bit errors in selective fading channels characteristic to digital cellular systems,” IEEE Proc.-Commun, vol. 142, no.4, pp.271-273, Aug. 1995 [19] T. Mabuchi, R. Kohno, and H. Imai, “Multiuser detection scheme based on canceling cohannel interference for MFSK/FH-SSMA system,” IEEE J. Select. Areas Commun., vol. 12, pp. 593-604, May 1994. [20] C.-C. Wang, “Design and performance analyses for various FH-CDMA wireless communication systems,” Master Thesis, National Chung-Hsing University, July 2003. [21] M.Y. Azizoblu, J.A. Salehi and Y.Li, “Optical CDMA via temporal codes,” IEEE Trans. Commun., Vol. 40, no. 7, pp. 1162-1170, July 1992 [22] Tsung-Chi Lin, Chia-Cheng Hsu, Cheng-Yuan Chang, Guu-Chang Yang and Wing C. Kwing, “Study of MFSK/FH-CDMA Wireless Communication Systems Without Symbol-Synchronous Assumption” Proceedings of 2007 IEEE Sarnoff Symposium, Princeton, New Jersey.
在邁向資訊化社會的今日,人們對於語音、數據傳輸及影音等多媒通訊服務的需求與日俱增,為了滿足人們對這些通訊服務的高度需求,發展新的通訊系統架構取代傳統僅能支援單一媒體傳輸的系統架構則是必然的趨勢。跳頻分碼多工系統(FH-CDMA System)即為目前無線通訊技術中常用的通訊存取技術,即利用分配不同用戶的跳頻碼,讓多用戶可以同時使用同一頻帶傳送所需的資料。在本論文中,我們在Goodman等人所提出多階調變編碼技術(MFSK)之跳頻分碼多工系統的架構下,考慮了以往所未提出的符號非同步的情況,並且修改了相關的式子。此非同步的假設更接近真實的通訊環境,另外也提出了質數碼應用於上述系統在同樣的非同步假設下,兩個不同使用者最大為二的碰撞發生機率。

Frequency hopping (FH) is one kind of code-division multiple-access (CDMA) techniques for wireless communication systems. FH-CDMA enables many users to share the same channel by assigning a unique hopping pattern to every user to distinguish users' transmission. In this thesis, we propose a more accurate method to analyze multilevel frequency-shift-keying/frequency-hopping code-division multiple- access (MFSK/FH-CDMA) wireless communication systems using “one-hit” FH patterns, instead of random FH patterns. By also removing the over-optimistic symbol-synchronous assumption, the new method provides a more realistic performance analysis as the MFSK modulation may result in two hits even when one-hit FH patterns are used if symbol transmissions are not synchronized. We derive the probability of getting two hits and include it in the analysis.
其他識別: U0005-1607200717585000
Appears in Collections:電機工程學系所

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