Performance Study of an Efficient Reduced-Complexity Time Synchronization Approach for DMT Systems

被引:0
|
作者
Nasraoui, Leila [1 ]
Atallah, Leila Najjar [1 ]
Siala, Mohamed [2 ]
机构
[1] Univ Carthage, COSIM Lab, Higher Sch Commun, Carthage, Tunisia
[2] Univ Carthage, MEDIATRON Lab, Higher Sch Commun, Carthage, Tunisia
关键词
DMT; frame detection; preamble-based synchronization; Gaussian processes; quantification; FREQUENCY;
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
This paper studies the performance of a recently proposed efficient reduced-complexity time synchronization approach, initially applied to OFDM systems, in the DMT systems. This approach uses a preamble of two identical parts and proceeds in two stages. In the first stage, a Cox and Schmidl-like metric is calculated to provide the coarse estimate. In the second stage, a differential correlation based metric is carried, over a short-length time window centered on the preamble start position coarse estimate. Assuming a successful coarse estimation, the performance of the fine estimation processing is here studied and evaluated in terms of probability of preamble start correct detection, for the DMT systems. Indeed, the closed form analytical expression of the correct detection probability is derived and compared to the experimental rate of correct detection. The simulation results provide a good match with the theoretical results. We also evaluate the performance degradation occasioned by a further complexity reduction obtained through replacing the differential correlation operations by sign changes. Both additive white Gaussian noise and multipath channels are here considered.
引用
收藏
页数:5
相关论文
共 50 条
  • [1] Performance evaluation of an efficient reduced-complexity time synchronization approach for OFDM systems
    Leïla Nasraoui
    Leïla Najjar Atallah
    Mohamed Siala
    annals of telecommunications - annales des télécommunications, 2014, 69 : 321 - 330
  • [2] Performance evaluation of an efficient reduced-complexity time synchronization approach for OFDM systems
    Nasraoui, Leila
    Atallah, Leila Najjar
    Siala, Mohamed
    ANNALS OF TELECOMMUNICATIONS, 2014, 69 (5-6) : 321 - 330
  • [3] Analytical Performance Evaluation of an Efficient Reduced-Complexity Time Synchronization Approach for OFDM Systems
    Nasraoui, Leila
    Atallah, Leila Najjar
    Siala, Mohamed
    2012 IEEE VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL), 2012,
  • [4] A Reduced-Complexity Fast Algorithm for Software Implementation of the IFFT/FFT in DMT Systems
    Tsun-Shan Chan
    Jen-Chih Kuo
    An-Yeu (Andy) Wu
    EURASIP Journal on Advances in Signal Processing, 2002
  • [5] A reduced-complexity fast algorithm for software implementation of the IFFT/FFT in DMT systems
    Chan, T.-S. (tscan@vxis.com), 1600, Hindawi Publishing Corporation (2002):
  • [6] A reduced-complexity fast algorithm for software implementation of the IFFT/FFT in DMT systems
    Chan, TS
    Kuo, JC
    Wu, AY
    EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING, 2002, 2002 (09) : 961 - 974
  • [7] A fast algorithm of reduced-complexity programmable DSP implementation of the IFFT/FFT in DMT systems
    Wu, AY
    Chan, TS
    Wang, B
    GLOBECOM 98: IEEE GLOBECOM 1998 - CONFERENCE RECORD, VOLS 1-6: THE BRIDGE TO GLOBAL INTEGRATION, 1998, : 833 - 838
  • [8] Reduced-complexity simply/doubly differential primary synchronization for LTE systems
    Nasraoui, Leila
    Atallah, Leila Najjar
    Siala, Mohamed
    TRANSACTIONS ON EMERGING TELECOMMUNICATIONS TECHNOLOGIES, 2017, 28 (08):
  • [9] A reduced-complexity and asymptotically efficient time-delay estimator
    Seco, G
    Swindlehurst, AL
    Fernández-Rubio, JA
    Asztély, D
    2000 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, PROCEEDINGS, VOLS I-VI, 2000, : 580 - 583
  • [10] An Efficient Reduced-Complexity Two-Stage Differential Sliding Correlation Approach for OFDM Synchronization in the Multipath Channel
    Nasraoui, Leila
    Atallah, Leila Najjar
    Siala, Mohamed
    2012 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC), 2012,