Macrodiversity Reception with Distributed Hard-Decision Receivers for Maritime Wireless Sensor Networks
Maritime wireless sensor networks are considered to be the primary means of monitoring methods in the marine environment. The transmission between sensor node and sink node in maritime wireless sensor networks is usually unreliable due to the harsh propagation environment. To extend the transmission...
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| Format: | Article |
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MDPI AG
2020-07-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/14/3925 |
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| author | Weigang Chen Dongming Sun Changcai Han Jinsheng Yang Feng Gong Wei Wang |
| author_facet | Weigang Chen Dongming Sun Changcai Han Jinsheng Yang Feng Gong Wei Wang |
| author_sort | Weigang Chen |
| collection | DOAJ |
| description | Maritime wireless sensor networks are considered to be the primary means of monitoring methods in the marine environment. The transmission between sensor node and sink node in maritime wireless sensor networks is usually unreliable due to the harsh propagation environment. To extend the transmission range or to enhance the transmission reliability between sensor nodes and sink node, we propose a macrodiversity reception scheme in the sink node equipped with distributed multiple hard-decision receivers. Multiple receivers are divided into several clusters and placed at different locations to receive different signal copies suffering from different fadings. Furthermore, a cascaded combining strategy based on hard-decision information is used to reduce the overall complexity of receiving side. The experimental results in the ocean scenarios show that the macrodiversity reception scheme with two antenna clusters has a transmission gain of 3–4 dB compared with the single antenna reception when the package loss rate is <inline-formula> <math display="inline"> <semantics> <msup> <mn>10</mn> <mrow> <mo>−</mo> <mn>2</mn> </mrow> </msup> </semantics> </math> </inline-formula>. The study casts a new method for reliable transmission in maritime wireless sensor networks using commercial transceivers which can only output hard-decision results. |
| first_indexed | 2024-03-10T18:28:31Z |
| format | Article |
| id | doaj.art-4a947f0999104cb7a45c774699f29a52 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T18:28:31Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-4a947f0999104cb7a45c774699f29a522023-11-20T06:48:12ZengMDPI AGSensors1424-82202020-07-012014392510.3390/s20143925Macrodiversity Reception with Distributed Hard-Decision Receivers for Maritime Wireless Sensor NetworksWeigang Chen0Dongming Sun1Changcai Han2Jinsheng Yang3Feng Gong4Wei Wang5School of Microelectronics, Tianjin University, Tianjin 300072, ChinaSchool of Microelectronics, Tianjin University, Tianjin 300072, ChinaSchool of Microelectronics, Tianjin University, Tianjin 300072, ChinaSchool of Microelectronics, Tianjin University, Tianjin 300072, ChinaJoint Laboratory for Ocean Observation and Detection, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, ChinaJoint Laboratory for Ocean Observation and Detection, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, ChinaMaritime wireless sensor networks are considered to be the primary means of monitoring methods in the marine environment. The transmission between sensor node and sink node in maritime wireless sensor networks is usually unreliable due to the harsh propagation environment. To extend the transmission range or to enhance the transmission reliability between sensor nodes and sink node, we propose a macrodiversity reception scheme in the sink node equipped with distributed multiple hard-decision receivers. Multiple receivers are divided into several clusters and placed at different locations to receive different signal copies suffering from different fadings. Furthermore, a cascaded combining strategy based on hard-decision information is used to reduce the overall complexity of receiving side. The experimental results in the ocean scenarios show that the macrodiversity reception scheme with two antenna clusters has a transmission gain of 3–4 dB compared with the single antenna reception when the package loss rate is <inline-formula> <math display="inline"> <semantics> <msup> <mn>10</mn> <mrow> <mo>−</mo> <mn>2</mn> </mrow> </msup> </semantics> </math> </inline-formula>. The study casts a new method for reliable transmission in maritime wireless sensor networks using commercial transceivers which can only output hard-decision results.https://www.mdpi.com/1424-8220/20/14/3925wireless sensor networksmacrodiversityequal gain combininghard-decision |
| spellingShingle | Weigang Chen Dongming Sun Changcai Han Jinsheng Yang Feng Gong Wei Wang Macrodiversity Reception with Distributed Hard-Decision Receivers for Maritime Wireless Sensor Networks Sensors wireless sensor networks macrodiversity equal gain combining hard-decision |
| title | Macrodiversity Reception with Distributed Hard-Decision Receivers for Maritime Wireless Sensor Networks |
| title_full | Macrodiversity Reception with Distributed Hard-Decision Receivers for Maritime Wireless Sensor Networks |
| title_fullStr | Macrodiversity Reception with Distributed Hard-Decision Receivers for Maritime Wireless Sensor Networks |
| title_full_unstemmed | Macrodiversity Reception with Distributed Hard-Decision Receivers for Maritime Wireless Sensor Networks |
| title_short | Macrodiversity Reception with Distributed Hard-Decision Receivers for Maritime Wireless Sensor Networks |
| title_sort | macrodiversity reception with distributed hard decision receivers for maritime wireless sensor networks |
| topic | wireless sensor networks macrodiversity equal gain combining hard-decision |
| url | https://www.mdpi.com/1424-8220/20/14/3925 |
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