Title :
Mistiming performance analysis of the energy detection based toa estimator for MB-OFDM
Author :
Xu, Huilin ; Yang, Liuqing ; Morton, Y. T Jade ; Miller, Mikel M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Florida, Gainesville, FL, USA
fDate :
8/1/2009 12:00:00 AM
Abstract :
In this letter, we apply energy detection based time- of-arrival (ToA) estimation to multi-band orthogonal frequency-division multiplexing signals. We analyze the mistiming performance of the ToA estimator in the Nakagami-m channel. Analysis shows that the slope of the probability of mistiming curve increases with the number of subbands and the Nakagami-m parameter. This is known in communications as diversity. Simulations are carried out in various channels to corroborate our theoretical analysis.
Keywords :
Nakagami channels; OFDM modulation; diversity reception; probability; time-of-arrival estimation; Nakagami-m channel; diversity gain; energy detection; mistiming performance analysis; multi-band orthogonal frequency-division multiplexing signal; probability; time-of-arrival estimation; Bandwidth; Delay estimation; Diversity reception; Fading; Frequency estimation; Nakagami distribution; Performance analysis; Rayleigh channels; Time of arrival estimation; Timing; Time-of-arrival (ToA) estimation, multi-band orthogonal frequency-division multiplexing (MB-OFDM), energy detection;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2009.090414
