Abstract With the development of information age and maturity Internet Things technology, wireless sensor network has been widely applied in indoor localization. However, non-line-of-sight (NLOS) propagation complicated environment inherent noise will introduce errors measurements, which seriously lead to inaccurate positioning. In this paper, a novel localization scheme based on mean reconstru...

We propose a line-of-sight (LOS)/non-line-of-sight (NLOS) mixture source localization algorithms that utilize the weighted block Newton (WBN) and variable step size WBN (VSSWBN) method, in which the weighting matrix is determined in the form of the inverse of the squared error or as an exponential function with a negative exponent. The proposed WBN and VSSWBN algorithms converge in two iteratio...

 This paper proposes a fuzzy line of sight (LOS)/non-line of sight (NLOS) smoother based on an adaptive Kalman filter, which can be used for mobile location estimation with the time of arrival (TOA) measurement data in cellular networks to meet the Federal Communications Commission (FCC) requirement for phase . A fuzzy inference scheme is used by the proposed location estimator to detect LOS c...

Position information of nodes within Wireless Sensor Networks (WSNs) is often a requirement in order to make use of the data recorded by the sensors themselves. On deployment the nodes normally have no prior knowledge of their position and thus a locationing mechanism is required to determine their positions. In this paper, we describe a method to determine the point-to-point range between sens...

1517 Fig. 7. BER versus equivalent SNR performance of both perfect and imperfect relaying Ir-DST and noncooperative IRCC-URC-G2 schemes for a frame length of 250 000 bits, where the cooperative network is configured with Gsr = 8, G rd = 2, and Ls = Lr, and the noncooperative system is equipped with two transmit and four receive antennas. In this contribution, we have proposed an Ir-DST coding s...

Wideband channel measurements at the 60 GHz frequency band in a reflective environment with different antenna heights are presented. The log-distance model of the normalized received power (NRP) is used to fit the measured data for both line-of-sight (LOS) and non-line-of-sight (NLOS) cases. Also, the impact of the biconical antennas and the reflective environment on the channel properties is a...