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Enhanced Time Synchronization in IEEE 802.11a System using SIGNAL Field and MAP Channel Estimation

Nguyen, Cong Luong and Mokraoui, Anissa and Duhamel, Pierre and Nguyen, Linh Trung (2012) Enhanced Time Synchronization in IEEE 802.11a System using SIGNAL Field and MAP Channel Estimation. In: The 2012 International Conference on Advanced Technologies for Communications (ATC), 10-12 October 2012, Hanoi, Vietnam.

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This paper addresses the problem of time synchronization in the IEEE 802.11a OFDM wireless communication system.In addition to the reference sequence usually used in conventional algorithms, recently the SIGNAL field of the physical packet has been exploited to improve the coarse time synchronization. To increase the performance of the fine time synchronization, we propose to use joint time synchronization and channel estimation based on the Maximum A Posteriori Probability criterion. Simulation results show that the probability of synchronization failure of the proposed synchronization algorithm is reduced as compared to existing methods.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Bit error rate;Frequency modulation;Frequency synchronization;Large scale integration;Radio access networks;Time frequency analysis;Wireless communication;IEEE 802.11a;MAP;OFDM;SIGNAL field;channel estimation;time synchronization;
Subjects: Electronics and Communications > Communications
Electronics and Communications
Divisions: Faculty of Electronics and Telecommunications (FET)
Key Laboratory for Smart Integrated Systems (SISLAB)
Depositing User: A/Prof. Linh Trung Nguyen
Date Deposited: 25 Jan 2013 07:19
Last Modified: 07 Dec 2016 15:47

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