Time delay based location estimation in decode-and-forward cooperative relay networks

Celik, Gokhan; Celebi, Hasari

doi:10.1109/wcnc.2013.6555216

Cited by 1 publication

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The probability density function (pdf) for the time delay estimatê τ conditioned over θ is represented as [8,[12][13][14] ,…”

Section: Crlb Analysis For Multipath En-vironmentmentioning

confidence: 99%

“…In [8], timeof-arrival (TOA) based localization method for a cooperative relay network consists of a single relay node considering single path channels is proposed. Additionally, time delay based location estimation in DF cooperative relay networks with multiple relay nodes over single path channels are investigated in [12]. In these previous studies, i.e., [8], [11] and [12], performance analysis of TOA based location estimation is conducted over single path channels.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, time delay based location estimation in DF cooperative relay networks with multiple relay nodes over single path channels are investigated in [12]. In these previous studies, i.e., [8], [11] and [12], performance analysis of TOA based location estimation is conducted over single path channels. However, in a realistic environment, the transmitted signals are often subject to multipath propagation.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

CRLB Analysis of Time Delay Based Location Estimation for UWB Cooperative Relay Networks in Multipath Environments

Celik

Celebi

2014

Proceedings of the 6th International Conference on Management of Emergent Digital EcoSystems

Self Cite

View full text Add to dashboard Cite

Localization of the nodes in wireless networks is crucial for supporting the location-based services (LBSs). In this study, we investigate the fundamental limits for time delay based location estimation in amplify-and-forward (AF) cooperative relay networks considering multipath environment. The limits are presented by obtaining Cramer-Rao Lower Bounds (CRLBs) expressions. Simulations are performed to verify the CRLB expressions and show the effects of node topology of the network, number of relay nodes, and number of multipath components (MPCs) on the location estimation of source node. According to the results, the placement of the relay nodes is very important to lower the location estimation error. Furthermore, using more relay nodes decreases the location estimation error, dramatically. Finally, processing more MPCs at the destination node is crucial to improve the estimation accuracy for both relaying strategy.

show abstract

“…The probability density function (pdf) for the time delay estimatê τ conditioned over θ is represented as [8,[12][13][14] ,…”

Section: Crlb Analysis For Multipath En-vironmentmentioning

confidence: 99%