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FH／MFSK多址系統(tǒng)中一種多用戶檢測算法

王霞,  朱世華,  孫德龍

王霞, 朱世華, 孫德龍. FH／MFSK多址系統(tǒng)中一種多用戶檢測算法[J]. 電子與信息學(xué)報, 2005, 27(6): 845-850.
引用本文: 王霞, 朱世華, 孫德龍. FH／MFSK多址系統(tǒng)中一種多用戶檢測算法[J]. 電子與信息學(xué)報, 2005, 27(6): 845-850.
Wang Xia, Zhu Shi-hua, Sun De-long . A Multiuser Detection Scheme for FH/MFSK Multiple Access Systems[J]. Journal of Electronics & Information Technology, 2005, 27(6): 845-850.
Citation: Wang Xia, Zhu Shi-hua, Sun De-long . A Multiuser Detection Scheme for FH/MFSK Multiple Access Systems[J]. Journal of Electronics & Information Technology, 2005, 27(6): 845-850.

FH／MFSK多址系統(tǒng)中一種多用戶檢測算法

A Multiuser Detection Scheme for FH/MFSK Multiple Access Systems

  • 摘要: 該文在對快跳頻多址系統(tǒng)中同頻干擾圖案分析的基礎(chǔ)上,提出了一種利用理想功控的條件進行同頻干擾消除的多用戶檢測算法。這一算法是在時頻矩陣上通過工作頻點能量級的檢測、分類,逐級判斷重構(gòu)干擾圖案的基礎(chǔ)上完成同頻干擾的抵消。從理論分析與數(shù)值仿真兩方面對這一算法進行了研究。結(jié)果表明,與已有的多址干擾消除算法相比,所提出的多用戶檢測算法不僅計算復(fù)雜度較低,算法的收斂性較好,而且適用于高斯信道與多經(jīng)衰落信道。
    Abstract: This paper presents a multiuser detection algorithm for the frequency hopping MFSK (M-ary Frequency Shift Keying) multiple access systems under the assumption of ideal power control. By detecting and classifying the energy levels in the frequency hopping slots of the time-frequency matrix, the interference pattern is identified and the cochannel interference is cancelled step-by-step. Theoretical analysis and computer simulation results show that the new detector has lower complexity, better convergence stability, and is suitable for the AWGN and Rayleigh fading channels.
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  • Viterbi A J. A processing satellite transponder for multiple access by low-rate mobile users[A]. Proc. Digital Satellite Communications Conference[C]. Montreal. Canada. 1978:166 - 173.[2]Goodman D J, Henry P S. Frequency-hopped multilevel FSK for mobile radio[J]. Bell Syst. Tech. J., 1980, 59(6): 1257 - 1275.[3]Fiebig U C. On the potential of FFH/MFSK CDMA for mobile radio systems[C]. Spread Spectrum Techniques and Applications,Proceedings 1998 IEEE 5th International Symposium on,Brussels, Belgium, 1998:332 - 337.[4]Verdu S. Optimum multiuser asymptotic effficiency[J].IEEE Trans. on Commun.1986, 34(9):890-[5]Mabuchi T, Kohno R. Muitiuser detection scheme based on canceling cochannel interference for MFSK/FH-SSMA system[J].IEEE J. on Selected Areas in Comm.1994,12(4):593-[6]Fiebig U C. Interative interference cancellation for FFH/MFSK MA system[J]. IEEProc.-Commun, 1996, 143(6): 380- 388.[7]Su Y T, Ye-Shun Shen, Chu-Ya Hsiao. On the detection of a class of fast frequency-hopped multiple access signals[J].IEEE J. on Selected Areas in Comm.2001, 19(11):2151-[8]Karen W H. Multistage multiuser detection for FHMA[J].IEEE Trans. on Commun.2000, 48(9):1550-[9]Varanasi M K, Aazhang B. Multistage detection in asynchronous code-division multiple-access communications[J].IEEE Trans.on Commun.1990, 38(4):509-[10]Lin S Y, Yang G C. Improved cochannel interference cancellation for MFSK/FH-SSMA systems[J].IEEE J. on Selected Areas in Comm.1999, 17(11):1940-[11]Wang Xia, Zhu Shihua, Zhang Penghui. Performance of fast frequency hopped multiple access system with M-FSK modulation[C]. Proceedings of the 7th International Conference on Telecommunications, Zagreb, Croatia, 2003:657 - 660.
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出版歷程
  • 收稿日期:  2003-12-15
  • 修回日期:  2005-11-03
  • 刊出日期:  2005-06-19

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