CN102970111A - Redundant-coding-based multi-channel access method for satellite network communication - Google Patents
Redundant-coding-based multi-channel access method for satellite network communication Download PDFInfo
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- CN102970111A CN102970111A CN2012104823795A CN201210482379A CN102970111A CN 102970111 A CN102970111 A CN 102970111A CN 2012104823795 A CN2012104823795 A CN 2012104823795A CN 201210482379 A CN201210482379 A CN 201210482379A CN 102970111 A CN102970111 A CN 102970111A
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Claims (1)
- In the satellite network communication based on the multichannel cut-in method of redundancy encoding, it is characterized in that terminal accesses satellite with multi-channel approach, and its each link no longer transmits identical data, but choose the coded sequence that a link transmission has error correcting capability, other link transmission are used for improving the redundant data of error correcting capability; Its purpose is to resist the high bit-error characteristics of satellite-ground link, improves communication reliability, and concrete scheme is as follows:Step 1: before the terminal access satellite satellite link tolerable error rate is set, then terminal is deleted ad-hoc location in the convolution code and is formed the deletion convolution code the initial data formation convolution code of encoding, and selects suitable access star to communicate;Step 2: regularly judge that according to the link feedback link error rates whether in the tolerable error rate, if in the tolerable scope, then continues to communicate by letter by former mode, if exceed the tolerable scope, then change step 3 over to;Step 3: find out terminal and can be linked into other redundant links of current access star and judge whether the redundant link that finds is available free, if the available free step 4 that then changes over to, otherwise, change step 4 over to after the wait link idle;Step 4: former communication link still transmits the deletion convolution code, deleted redundant data when redundant link transmission generates the deletion convolution code by convolution code;Step 5: when data reach the access star, deposit access star buffering area in, then the deletion convolution code is carried out single channel decoding, if decipher errorless or error code can deleted convolution code self be corrected, then received code sequence and abandon the redundant data of another road transmission changes step 7 over to;Step 6: the wrong and error code of single channel decoding can not be corrected by deletion convolution code self and wait for that then redundant data arrives, and merges decoding with redundant data, merges that decoding is wrong and wrong can not correct then by the pooling information sequence that notification terminal retransmits; Merging is deciphered errorless or error code can be corrected by the pooling information sequence, then change step 7 over to;Step 7: transmission success, return the ACK acknowledgement frame to terminal.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105187176A (en) * | 2015-08-07 | 2015-12-23 | 中国运载火箭技术研究院 | Electrical system provided with redundant link and communication method thereof |
CN110120853A (en) * | 2019-05-24 | 2019-08-13 | 中国科学院计算机网络信息中心 | Data transmission, reception device and data sending, receiving method under multiple link environment |
WO2020034195A1 (en) * | 2018-08-17 | 2020-02-20 | 西门子股份公司 | Industrial application data sending and receiving method and apparatus |
CN113783775A (en) * | 2021-03-09 | 2021-12-10 | 北京京东尚科信息技术有限公司 | Data transmission method and device |
CN114915379A (en) * | 2022-07-18 | 2022-08-16 | 中国科学院空天信息创新研究院 | Remote sensing satellite data receiving and recovering method |
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CN1954518A (en) * | 2004-03-17 | 2007-04-25 | 高通股份有限公司 | Satellite diversity system, apparatus and method |
US20100265879A1 (en) * | 2009-04-17 | 2010-10-21 | Viasat, Inc. | Multi-satellite architecture |
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CN102546106A (en) * | 2011-12-28 | 2012-07-04 | 南京邮电大学 | Multipath parallel transmission method facing satellite network |
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2012
- 2012-11-23 CN CN201210482379.5A patent/CN102970111B/en not_active Expired - Fee Related
Patent Citations (4)
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---|---|---|---|---|
CN1954518A (en) * | 2004-03-17 | 2007-04-25 | 高通股份有限公司 | Satellite diversity system, apparatus and method |
US20100265879A1 (en) * | 2009-04-17 | 2010-10-21 | Viasat, Inc. | Multi-satellite architecture |
CN102394858A (en) * | 2011-06-30 | 2012-03-28 | 北京邮电大学 | Method and device for transmitting information |
CN102546106A (en) * | 2011-12-28 | 2012-07-04 | 南京邮电大学 | Multipath parallel transmission method facing satellite network |
Non-Patent Citations (1)
Title |
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肖甫等: ""面向卫星网络的流量工程路由算法"", 《通信学报》, vol. 32, no. 5, 31 May 2011 (2011-05-31) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105187176A (en) * | 2015-08-07 | 2015-12-23 | 中国运载火箭技术研究院 | Electrical system provided with redundant link and communication method thereof |
WO2020034195A1 (en) * | 2018-08-17 | 2020-02-20 | 西门子股份公司 | Industrial application data sending and receiving method and apparatus |
CN110120853A (en) * | 2019-05-24 | 2019-08-13 | 中国科学院计算机网络信息中心 | Data transmission, reception device and data sending, receiving method under multiple link environment |
CN113783775A (en) * | 2021-03-09 | 2021-12-10 | 北京京东尚科信息技术有限公司 | Data transmission method and device |
CN114915379A (en) * | 2022-07-18 | 2022-08-16 | 中国科学院空天信息创新研究院 | Remote sensing satellite data receiving and recovering method |
CN114915379B (en) * | 2022-07-18 | 2022-10-14 | 中国科学院空天信息创新研究院 | Remote sensing satellite data receiving and recovering method |
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Application publication date: 20130313 Assignee: Jiangsu Nanyou IOT Technology Park Ltd. Assignor: Nanjing Post & Telecommunication Univ. Contract record no.: 2016320000213 Denomination of invention: Redundant-coding-based multi-channel access method for satellite network communication Granted publication date: 20150204 License type: Common License Record date: 20161118 |
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Assignee: Jiangsu Nanyou IOT Technology Park Ltd. Assignor: Nanjing Post & Telecommunication Univ. Contract record no.: 2016320000213 Date of cancellation: 20180116 |
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