Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/627988
Title: Joint Power and Bandwidth Allocation in Wireless Cooperative Localization Networks
Authors: Tingting Zhang;Andreas F. Molisch;Yuan Shen;Qinyu Zhang;Hao Feng;Moe Z. Win
subject: Cooperative localization|ranging|optimization|resource allocation
Year: 2016
Publisher: IEEE
Abstract: Cooperative localization can enhance the accuracy of wireless network localization by incorporating range information among agent nodes in addition to those between agents and anchors. In this paper, we investigate the optimal allocation of the restricted resources, namely, power and bandwidth, to different nodes. We formulate the optimization problems for both synchronous networks and asynchronous networks, where one way and round trip measurements are applied for range estimation, respectively. Since the optimization problems are nonconvex, we develop an iterative linearization-based technique, and show by comparison with brute-force search that it provides near-optimal performance in the investigated cases. We also show that especially in the case of inefficient anchor placement and/or severe shadowing, cooperation among agents is important and more resources should be allocated to the agents correspondingly.
Description: 
URI: http://localhost/handle/Hannan/146825
http://localhost/handle/Hannan/627988
ISSN: 1536-1276
volume: 15
issue: 10
Appears in Collections:2016

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Title: Joint Power and Bandwidth Allocation in Wireless Cooperative Localization Networks
Authors: Tingting Zhang;Andreas F. Molisch;Yuan Shen;Qinyu Zhang;Hao Feng;Moe Z. Win
subject: Cooperative localization|ranging|optimization|resource allocation
Year: 2016
Publisher: IEEE
Abstract: Cooperative localization can enhance the accuracy of wireless network localization by incorporating range information among agent nodes in addition to those between agents and anchors. In this paper, we investigate the optimal allocation of the restricted resources, namely, power and bandwidth, to different nodes. We formulate the optimization problems for both synchronous networks and asynchronous networks, where one way and round trip measurements are applied for range estimation, respectively. Since the optimization problems are nonconvex, we develop an iterative linearization-based technique, and show by comparison with brute-force search that it provides near-optimal performance in the investigated cases. We also show that especially in the case of inefficient anchor placement and/or severe shadowing, cooperation among agents is important and more resources should be allocated to the agents correspondingly.
Description: 
URI: http://localhost/handle/Hannan/146825
http://localhost/handle/Hannan/627988
ISSN: 1536-1276
volume: 15
issue: 10
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7491311.pdf1.91 MBAdobe PDFThumbnail
Preview File
Title: Joint Power and Bandwidth Allocation in Wireless Cooperative Localization Networks
Authors: Tingting Zhang;Andreas F. Molisch;Yuan Shen;Qinyu Zhang;Hao Feng;Moe Z. Win
subject: Cooperative localization|ranging|optimization|resource allocation
Year: 2016
Publisher: IEEE
Abstract: Cooperative localization can enhance the accuracy of wireless network localization by incorporating range information among agent nodes in addition to those between agents and anchors. In this paper, we investigate the optimal allocation of the restricted resources, namely, power and bandwidth, to different nodes. We formulate the optimization problems for both synchronous networks and asynchronous networks, where one way and round trip measurements are applied for range estimation, respectively. Since the optimization problems are nonconvex, we develop an iterative linearization-based technique, and show by comparison with brute-force search that it provides near-optimal performance in the investigated cases. We also show that especially in the case of inefficient anchor placement and/or severe shadowing, cooperation among agents is important and more resources should be allocated to the agents correspondingly.
Description: 
URI: http://localhost/handle/Hannan/146825
http://localhost/handle/Hannan/627988
ISSN: 1536-1276
volume: 15
issue: 10
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7491311.pdf1.91 MBAdobe PDFThumbnail
Preview File