A Novel Wireless Local Positioning System via a Merger of DS-CDMA and Beamforming: Probability-of-Detection Performance Analysis Under Array Perturbations
- 15 May 2007
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Vehicular Technology
- Vol. 56 (3), 1307-1320
- https://doi.org/10.1109/tvt.2007.895499
Abstract
This paper investigates the probability-of-detection (POD) performance of a novel wireless local positioning system (WLPS) realized via direct sequence code division multiple access (DS-CDMA) and beamforming techniques. The proposed WLPS has unique signaling schemes that discriminate it from the traditional wireless systems and allows the WLPS to have many civilian and military applications. The WLPS consists of two main parts: 1) the detecting unit, a base station carried by a mobile unit defined as dynamic base station (DBS), and 2) the being detected unit, a transponder (TRX) that is mounted on the targets, each assigned a unique identification code. Each DBS should be capable of detecting and locating all available TRXs in its coverage area. As a result, the main complexity of this system is focused at the DBS receiver. In this paper, we introduce WLPS structure, and both theoretically and numerically compute, and compare the POD performance of the DBS receiver realized by a merger of DS-CDMA and antenna arrays. We also analyze and simulate the performance of this system under perturbations in the DBS antenna array vector. The simulations are particularly performed for vehicular collision avoidance applicationsKeywords
This publication has 31 references indexed in Scilit:
- Computationally efficient high-resolution DOA estimation in multipath environmentElectronics Letters, 2004
- Multihop sensor network design for wide-band communicationsProceedings of the IEEE, 2003
- Efficient quadratic detection in perturbed arrays via Fourier transform techniquesIEEE Transactions on Signal Processing, 2001
- Performance analysis of maximal ratio combining and comparison with optimum combining for mobile radio communications with cochannel interferenceIEEE Transactions on Vehicular Technology, 2000
- Designing a positioning system for finding things and people indoorsIEEE Spectrum, 1998
- Application of antenna arrays to mobile communications. II. Beam-forming and direction-of-arrival considerationsProceedings of the IEEE, 1997
- Air traffic management: evolution with technologyIEEE Control Systems, 1996
- Performance analysis of the minimum variance beamformer in the presence of steering vector errorsIEEE Transactions on Signal Processing, 1996
- The effects of array calibration errors on DF-based signal copy performanceIEEE Transactions on Signal Processing, 1995
- Development and operation of the Traffic Alert and Collision Avoidance System (TCAS)Proceedings of the IEEE, 1989