AN IMPROVED METHOD FOR TOA ESTIMATION IN TH-UWB SYSTEM CONSIDERING MULTIPATH EFFECTS AND INTERFERENCE

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GHASEMLOU MAHDIEH; ESFAHANI SAEID NADER; TABATABA VAKILI VAHID

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Journal Paper

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Journal: Journal of Information Systems and Telecommunication Year:2014 | Volume:2 | Issue:1 (5) Page(s): 23-29

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Title

AN IMPROVED METHOD FOR TOA ESTIMATION IN TH-UWB SYSTEM CONSIDERING MULTIPATH EFFECTS AND INTERFERENCE

Author(s)

GHASEMLOU MAHDIEH | ESFAHANI SAEID NADER | TABATABA VAKILI VAHID | Issue Writer Certificate

Keywords

THRESHOLD

INTERFERENCE

TOA

RANGING

Abstract

UWB RANGING is usually based on the time-of-arrival (TOA) estimation of the first path. There are two major challenges in TOA estimation. One challenge is to deal with multipath channel, especially in indoor environments. The other challenge is the existence of INTERFERENCE from other sources. In this paper, we propose a new method of TOA estimation, which is very robust against the INTERFERENCE. In this method, during the phase of TOA estimation, the transmitter sends its pulses in random positions within the frame. This makes the position of the INTERFERENCE relative to the main pulse to be random. Consequently, the energy of INTERFERENCE would be distributed, almost uniformly, along the frame. In energy detection methods, a constant INTERFERENCE along the frame does not affect the detection of arrival time and only needs the adjustment of the THRESHOLD. Simulation results in IEEE. 802.15.4a channels show that, even in presence of very strong INTERFERENCE, TOA estimation error of less than 3 nanoseconds is feasible with the proposed method.

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APA: Copy

GHASEMLOU, MAHDIEH, ESFAHANI, SAEID NADER, & TABATABA VAKILI, VAHID. (2014). AN IMPROVED METHOD FOR TOA ESTIMATION IN TH-UWB SYSTEM CONSIDERING MULTIPATH EFFECTS AND INTERFERENCE. JOURNAL OF INFORMATION SYSTEMS AND TELECOMMUNICATION (JIST), 2(1 (5)), 23-29. SID. https://sid.ir/paper/332627/en

Vancouver: Copy

GHASEMLOU MAHDIEH, ESFAHANI SAEID NADER, TABATABA VAKILI VAHID. AN IMPROVED METHOD FOR TOA ESTIMATION IN TH-UWB SYSTEM CONSIDERING MULTIPATH EFFECTS AND INTERFERENCE. JOURNAL OF INFORMATION SYSTEMS AND TELECOMMUNICATION (JIST)[Internet]. 2014;2(1 (5)):23-29. Available from: https://sid.ir/paper/332627/en

IEEE: Copy

MAHDIEH GHASEMLOU, SAEID NADER ESFAHANI, and VAHID TABATABA VAKILI, “AN IMPROVED METHOD FOR TOA ESTIMATION IN TH-UWB SYSTEM CONSIDERING MULTIPATH EFFECTS AND INTERFERENCE,” JOURNAL OF INFORMATION SYSTEMS AND TELECOMMUNICATION (JIST), vol. 2, no. 1 (5), pp. 23–29, 2014, [Online]. Available: https://sid.ir/paper/332627/en

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