Improved and Extended Range Scale Algorithm for Wireless Cellular Location

Wu, Shixun; Li, Jiping; Liu, Shouyin; Chong, Jong-Wha

doi:10.1109/lcomm.2011.111611.111416

Cited by 11 publications

(9 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [9,10], three BSs location algorithms are proposed by utilizing nonlinear constrained optimization. With the help of angle measurement, two BSs location algorithm is presented in [11].…”

Section: Introductionmentioning

confidence: 99%

Adaptive NLOS Mitigation Location Algorithm in Wireless Cellular Network

Wang

2015

Wireless Pers Commun

Self Cite

View full text Add to dashboard Cite

In a cellular network, a location scenario is considered in this paper, which the home base station (BS) measures the range and angle while neighboring BSs measure the ranges. Based on the range and angle measurements, two adaptive non-line-of-sight (NLOS) identification and mitigation location algorithms with low complexity are proposed. The main idea of our proposed algorithms is to search the optimal subset of range and angle measurements by utilizing the hybrid lines of position algorithm and comparing the normalized residual error to perform the NLOS identification and location. Compared with the existing algorithms, the proposed algorithms have three advantages: one is different to the existing algorithms that require at least three BSs, the proposed algorithms can be suitable for two BSs scenario. Second is the low complexity of our proposed algorithms compared with the existing algorithms. The last is simulation results show that the proposed algorithms outperform the existing algorithms in bad urban and urban environments.

show abstract

“…In [9,10], three BSs location algorithms are proposed by utilizing nonlinear constrained optimization. With the help of angle measurement, two BSs location algorithm is presented in [11].…”

Section: Introductionmentioning

confidence: 99%

Adaptive NLOS Mitigation Location Algorithm in Wireless Cellular Network

Wang

2015

Wireless Pers Commun

Self Cite

View full text Add to dashboard Cite

show abstract

“…Many NLOS mitigation techniques can be found in [8][9][10][11][12][13]. Based on the NLOS distance measurements that are longer than the true distances, mathematical programming approach, which is achieved by defining a new variable to replace the square term, is proposed to reduce the NLOS error in [8].…”

Section: Introductionmentioning

confidence: 99%

“…However, because of the nonlinear objective function, it has high computation complexity. By using a new variable to replace the square term and transforming the nonlinear objective function into linear term, the work in [11] proposes a new range scale algorithm with low complexity. Linear least square approach, which selects the smallest distance measurement as the reference BS, is proposed to deal with the NLOS error in [12].…”

Section: Introductionmentioning

confidence: 99%

Two base station location techniques with adjusted measurements in circular scattering environments

Tan

et al. 2015

Int J Communication

Self Cite

View full text Add to dashboard Cite

Summary In circular scattering environments, novel location techniques with only two base stations (BSs) are proposed in this paper. The proposed techniques estimate the true or line‐of‐sight ranges and angle based on non‐line‐of‐sight range and angle measurements. Three new variables are introduced when range measurements and angle measurement are available from two BSs and the serving BS, respectively. Bounds and relationships between the three variables are extracted from the geometry of the cell layout with the unknown and known scattering radius conditions, respectively. Our aim is to obtain the estimation of three new variables and then the hybrid line of position technique with the adjusted ranges, and angle is utilized to obtain the position estimation of a mobile station. In order to obtain the estimation of three new variables, a new nonlinear objective function is built to form the constrained nonlinear optimization and solved by the existing optimization algorithms. However, because of the nonconvex objective function, the optimization algorithm may converge to the local optimum and lead to bad performance. Thus, a heuristic search algorithm is proposed by averaging all the potential point. Simulation results show that the proposed techniques outperform conventional hybrid techniques. Copyright © 2015 John Wiley & Sons, Ltd.

show abstract

“…Positioning systems based on cellular networks, e.g. GSM and UMTS does not provide accurate estimates for the indoor positioning [4]. On the other hand GNSS systems, like GPS suffer from the strong multipath propagation and high signal attenuations in the indoor environment [5].…”

Section: Introductionmentioning

confidence: 99%

Impact of APs removal on accuracy of fingerprinting localization algorithms

Machaj

Brída

Benikovsky

2015

2015 38th International Conference on Telecommunications and Signal Processing (TSP)

View full text Add to dashboard Cite

In this paper the impact of the Access Points (APs) removal on localization accuracy of Rank Based Fingerprinting (RBF) will be investigated using simulations. The RBF algorithm was previously proposed by the authors and it seems to improve performance of the traditional fingerprinting algorithms and reduce impact of the device change on the accuracy of the positioning process. In the first part of the paper the impact of APs with different Received Signal Strength values on the performance of the positioning using RBF algorithm will be investigated. Based on results achieved in the simulation, algorithm for APs removal will be proposed and tested in simulations and real world experiments. Simulations will be performed in the model created in Matlab environment. Results achieved by the RBF algorithm during will be compared to the results achieved by the traditional Nearest Neighbour family algorithms.

show abstract

Improved and Extended Range Scale Algorithm for Wireless Cellular Location

Cited by 11 publications

References 8 publications

Adaptive NLOS Mitigation Location Algorithm in Wireless Cellular Network

Adaptive NLOS Mitigation Location Algorithm in Wireless Cellular Network

Two base station location techniques with adjusted measurements in circular scattering environments

Impact of APs removal on accuracy of fingerprinting localization algorithms

Contact Info

Product

Resources

About