Impact of channel access on localization in cooperative UWB sensor network: A case study

Savioli, Alberto; Goldoni, Emanuele; Gamba, Paolo

doi:10.1109/wpnc.2012.6268732

Cited by 3 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This interference can be elevated by using minimum mean-square error (MMSE) multiuser detection schemes to reject strong narrowband interference. Furthermore, simultaneous ranging among many UWB tags may cause some problems to channel access control which may lead to degradation in positioning accuracy [ 125 ].…”

Section: Swot Analysismentioning

confidence: 99%

Ultra Wideband Indoor Positioning Technologies: Analysis and Recent Advances

Alarifi

Al-Salman

Alsaleh

et al. 2016

Sensors

906

592

View full text Add to dashboard Cite

In recent years, indoor positioning has emerged as a critical function in many end-user applications; including military, civilian, disaster relief and peacekeeping missions. In comparison with outdoor environments, sensing location information in indoor environments requires a higher precision and is a more challenging task in part because various objects reflect and disperse signals. Ultra WideBand (UWB) is an emerging technology in the field of indoor positioning that has shown better performance compared to others. In order to set the stage for this work, we provide a survey of the state-of-the-art technologies in indoor positioning, followed by a detailed comparative analysis of UWB positioning technologies. We also provide an analysis of strengths, weaknesses, opportunities, and threats (SWOT) to analyze the present state of UWB positioning technologies. While SWOT is not a quantitative approach, it helps in assessing the real status and in revealing the potential of UWB positioning to effectively address the indoor positioning problem. Unlike previous studies, this paper presents new taxonomies, reviews some major recent advances, and argues for further exploration by the research community of this challenging problem space.

show abstract

Section: Swot Analysismentioning

confidence: 99%

Ultra Wideband Indoor Positioning Technologies: Analysis and Recent Advances

Alarifi

Al-Salman

Alsaleh

et al. 2016

Sensors

906

592

View full text Add to dashboard Cite

show abstract

“…Moreover, it is assumed that UWB radios provide accurate ranges with an error below a few centimeters, experimental results show that this is not always the case [14], due to the presence of walls and time synchronization issues among the nodes. For this reason, the proposed approach includes fusion of range information coming from different radio technologies as a processing step prior to the tracking routine.…”

Section: Related Workmentioning

confidence: 99%

Low-Complexity Localization and Tracking in Hybrid Wireless Sensor Networks

Kianoush

Goldoni

Savioli

et al. 2012

ISRN Sensor Networks

View full text Add to dashboard Cite

Localization in Wireless Sensor Networks (WSNs) is an important research topic: readings come from sensors scattered in the environment, and most of applications assume that the exact position of the sensors is known. Due to power restrictions, WSN nodes are not usually equipped with a global positioning system-hence, many techniques have been developed in order to estimate the position of nodes according to some measurements over the radio channel. In this paper, we propose a new technique to track a moving target by combining distance measurements obtained from both narrowband IEEE 802.15.4 and Ultrawideband (UWB) radios, and then exploiting a novel speed-based algorithm for bounding the error. This process is applied to a real dataset collected during a measurement campaign, and its performance is compared against a Kalman filter. Results show that our algorithm is able to track target path with good accuracy and low computational impact.

show abstract

“…Cooperative UWB system has attracted significant attention recently [5][6][7][8]. A monograph about cooperative UWB system is published, as well as optimum resource allocation algorithms aiming at Decode-and-Forward (DF) cooperative Multi-band OFDM (MB-OFDM) UWB system [9].…”

Section: Introductionmentioning

confidence: 99%

Towards Resource Allocation Algorithm in Opportunistic Relaying Cooperative UWB Communication System

Yang¹,

Sun²,

Yang³

2014

JNW

View full text Add to dashboard Cite

A novel communication system named "OR cooperative UWB" is proposed by bringing OR (Opportunistic Relaying) to UWB system. Particularly, the exact and closed-form symbol error rate (SER) expression is derived firstly in this paper. In order to maximize the capacity considering fairness between users, a definition of equivalent mean channel gain is given, and a joint resource allocation algorithm is also proposed which includes three steps: sub-band allocation algorithm, relaying allocation algorithm and power allocation algorithm. Employing the conception of "relative requirement degree", the algorithm shows a distributed solution targeting relay partner selecting and increasing capacity while satisfying the users' QoS (Quality of Service) requirement. Simulations results validate the performance of the proposed algorithm.

show abstract

Impact of channel access on localization in cooperative UWB sensor network: A case study

Cited by 3 publications

References 7 publications

Ultra Wideband Indoor Positioning Technologies: Analysis and Recent Advances

Ultra Wideband Indoor Positioning Technologies: Analysis and Recent Advances

Low-Complexity Localization and Tracking in Hybrid Wireless Sensor Networks

Towards Resource Allocation Algorithm in Opportunistic Relaying Cooperative UWB Communication System

Contact Info

Product

Resources

About