Optimized Gateway Placement for Interference Cancellation in Transmit-Only LPWA Networks
We study the placement of gateways in a low-power wide-area sensor network, when the gateways perform interference cancellation and when the model of the residual error of interference cancellation is proportional to the power of the packet being canceled. For the case of two sensor nodes sending pa...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/18/11/3884 |
| _version_ | 1811280413275979776 |
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| author | Hongxian Tian Mary Ann Weitnauer Gedeon Nyengele |
| author_facet | Hongxian Tian Mary Ann Weitnauer Gedeon Nyengele |
| author_sort | Hongxian Tian |
| collection | DOAJ |
| description | We study the placement of gateways in a low-power wide-area sensor network, when the gateways perform interference cancellation and when the model of the residual error of interference cancellation is proportional to the power of the packet being canceled. For the case of two sensor nodes sending packets that collide, by which we mean overlap in time, we deduce a symmetric two-crescent region wherein a gateway can decode both collided packets. For a large network of many sensors and multiple gateways, we propose two greedy algorithms to optimize the locations of the gateways. Simulation results show that the gateway placements by our algorithms achieve lower average contention, which means higher packet delivery ratio in the same conditions, than when gateways are naively placed, for several area distributions of sensors. |
| first_indexed | 2024-04-13T01:14:26Z |
| format | Article |
| id | doaj.art-68647066d04542748fa47be350fdb906 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T01:14:26Z |
| publishDate | 2018-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-68647066d04542748fa47be350fdb9062022-12-22T03:09:01ZengMDPI AGSensors1424-82202018-11-011811388410.3390/s18113884s18113884Optimized Gateway Placement for Interference Cancellation in Transmit-Only LPWA NetworksHongxian Tian0Mary Ann Weitnauer1Gedeon Nyengele2School of Electronic and Information Engineering Beijing Jiaotong University, Beijing 100044, ChinaSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta 30332-0250, GA, USADepartment of Electrical Engineering Stanford University, Stanford 94305-2004, CA, USAWe study the placement of gateways in a low-power wide-area sensor network, when the gateways perform interference cancellation and when the model of the residual error of interference cancellation is proportional to the power of the packet being canceled. For the case of two sensor nodes sending packets that collide, by which we mean overlap in time, we deduce a symmetric two-crescent region wherein a gateway can decode both collided packets. For a large network of many sensors and multiple gateways, we propose two greedy algorithms to optimize the locations of the gateways. Simulation results show that the gateway placements by our algorithms achieve lower average contention, which means higher packet delivery ratio in the same conditions, than when gateways are naively placed, for several area distributions of sensors.https://www.mdpi.com/1424-8220/18/11/3884wireless sensor networkinterference cancellationcapturegateways location |
| spellingShingle | Hongxian Tian Mary Ann Weitnauer Gedeon Nyengele Optimized Gateway Placement for Interference Cancellation in Transmit-Only LPWA Networks Sensors wireless sensor network interference cancellation capture gateways location |
| title | Optimized Gateway Placement for Interference Cancellation in Transmit-Only LPWA Networks |
| title_full | Optimized Gateway Placement for Interference Cancellation in Transmit-Only LPWA Networks |
| title_fullStr | Optimized Gateway Placement for Interference Cancellation in Transmit-Only LPWA Networks |
| title_full_unstemmed | Optimized Gateway Placement for Interference Cancellation in Transmit-Only LPWA Networks |
| title_short | Optimized Gateway Placement for Interference Cancellation in Transmit-Only LPWA Networks |
| title_sort | optimized gateway placement for interference cancellation in transmit only lpwa networks |
| topic | wireless sensor network interference cancellation capture gateways location |
| url | https://www.mdpi.com/1424-8220/18/11/3884 |
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