Estimation and compensation of clipping noise in OFDMA systems
We propose an efficient and low-complexity scheme for estimating and compensating clipping noise in OFDMA systems. Conventional clipping noise estimation schemes, which need all demodulated data symbols, may become infeasible in OFDMA systems where a specific user may only know his own modulation sc...
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| Veröffentlicht in: | IEEE transactions on wireless communications 2010-02, Vol.9 (2), p.523-527 |
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| container_title | IEEE transactions on wireless communications |
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| creator | Ying Chen Jian Zhang Jayalath, A.D.S. |
| description | We propose an efficient and low-complexity scheme for estimating and compensating clipping noise in OFDMA systems. Conventional clipping noise estimation schemes, which need all demodulated data symbols, may become infeasible in OFDMA systems where a specific user may only know his own modulation scheme. The proposed scheme first uses equalized output to identify a limited number of candidate clips, and then exploits the information on known subcarriers to reconstruct clipped signal. Simulation results show that the proposed scheme can significantly improve the system performance. |
| doi_str_mv | 10.1109/TWC.2010.02.090128 |
| format | Article |
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Conventional clipping noise estimation schemes, which need all demodulated data symbols, may become infeasible in OFDMA systems where a specific user may only know his own modulation scheme. The proposed scheme first uses equalized output to identify a limited number of candidate clips, and then exploits the information on known subcarriers to reconstruct clipped signal. Simulation results show that the proposed scheme can significantly improve the system performance.</description><identifier>ISSN: 1536-1276</identifier><identifier>EISSN: 1558-2248</identifier><identifier>DOI: 10.1109/TWC.2010.02.090128</identifier><identifier>CODEN: ITWCAX</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Australia ; Clipping ; Clips ; Degradation ; Detection, estimation, filtering, equalization, prediction ; Downlink ; Exact sciences and technology ; Frequency division multiplexing ; Information, signal and communications theory ; Iterative methods ; Modulation ; Modulation, demodulation ; Multiplexing ; Noise ; OFDM modulation ; OFDMA ; PAPR ; Peak to average power ratio ; Signal and communications theory ; Signal processing ; Signal, noise ; Simulation ; Subcarriers ; Symbols ; System performance ; Systems engineering and theory ; Systems, networks and services of telecommunications ; Telecommunications ; Telecommunications and information theory ; Transmission and modulation (techniques and equipments) ; Wireless communication</subject><ispartof>IEEE transactions on wireless communications, 2010-02, Vol.9 (2), p.523-527</ispartof><rights>2015 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Feb 2010</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c432t-fc049b018345474f9352b76f59833ba240e3fbd0ac468b4640fa7b2dc54b54ed3</citedby><cites>FETCH-LOGICAL-c432t-fc049b018345474f9352b76f59833ba240e3fbd0ac468b4640fa7b2dc54b54ed3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/5403529$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/5403529$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22380135$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Ying Chen</creatorcontrib><creatorcontrib>Jian Zhang</creatorcontrib><creatorcontrib>Jayalath, A.D.S.</creatorcontrib><title>Estimation and compensation of clipping noise in OFDMA systems</title><title>IEEE transactions on wireless communications</title><addtitle>TWC</addtitle><description>We propose an efficient and low-complexity scheme for estimating and compensating clipping noise in OFDMA systems. Conventional clipping noise estimation schemes, which need all demodulated data symbols, may become infeasible in OFDMA systems where a specific user may only know his own modulation scheme. The proposed scheme first uses equalized output to identify a limited number of candidate clips, and then exploits the information on known subcarriers to reconstruct clipped signal. Simulation results show that the proposed scheme can significantly improve the system performance.</description><subject>Applied sciences</subject><subject>Australia</subject><subject>Clipping</subject><subject>Clips</subject><subject>Degradation</subject><subject>Detection, estimation, filtering, equalization, prediction</subject><subject>Downlink</subject><subject>Exact sciences and technology</subject><subject>Frequency division multiplexing</subject><subject>Information, signal and communications theory</subject><subject>Iterative methods</subject><subject>Modulation</subject><subject>Modulation, demodulation</subject><subject>Multiplexing</subject><subject>Noise</subject><subject>OFDM modulation</subject><subject>OFDMA</subject><subject>PAPR</subject><subject>Peak to average power ratio</subject><subject>Signal and communications theory</subject><subject>Signal processing</subject><subject>Signal, noise</subject><subject>Simulation</subject><subject>Subcarriers</subject><subject>Symbols</subject><subject>System performance</subject><subject>Systems engineering and theory</subject><subject>Systems, networks and services of telecommunications</subject><subject>Telecommunications</subject><subject>Telecommunications and information theory</subject><subject>Transmission and modulation (techniques and equipments)</subject><subject>Wireless communication</subject><issn>1536-1276</issn><issn>1558-2248</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqFkD1PwzAQhiMEEqXwB2CJkBBTyvkrcRakqrSAVNSliNFyHBu5SuwQp0P_PQmpGFiYfPY99-r8RNE1ghlCkD9sPxYzDP0N8AxyQJifRBPEGE8wpvx0qEmaIJyl59FFCDsAlKWMTaLHZehsLTvrXSxdGStfN9qF8cGbWFW2aaz7jJ23QcfWxZvV09s8DofQ6TpcRmdGVkFfHc9p9L5abhcvyXrz_LqYrxNFCe4So4DmBSBOKKMZNTlhuMhSw3JOSCExBU1MUYJUNOUFTSkYmRW4VIwWjOqSTKP7Mbdp_ddeh07UNihdVdJpvw-CZwwwyoD9S2a9CIrYD3n7h9z5fev6bwjO0hQwpXkP4RFSrQ-h1UY0be-rPQgEYlAvevViUC8Ai1F9P3R3TJZBycq00ikbficxJhwQGTa4GTmrtf5tMwq9npx8A8W8ih0</recordid><startdate>20100201</startdate><enddate>20100201</enddate><creator>Ying Chen</creator><creator>Jian Zhang</creator><creator>Jayalath, A.D.S.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Conventional clipping noise estimation schemes, which need all demodulated data symbols, may become infeasible in OFDMA systems where a specific user may only know his own modulation scheme. The proposed scheme first uses equalized output to identify a limited number of candidate clips, and then exploits the information on known subcarriers to reconstruct clipped signal. Simulation results show that the proposed scheme can significantly improve the system performance.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TWC.2010.02.090128</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 1536-1276 |
| ispartof | IEEE transactions on wireless communications, 2010-02, Vol.9 (2), p.523-527 |
| issn | 1536-1276 1558-2248 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Australia Clipping Clips Degradation Detection, estimation, filtering, equalization, prediction Downlink Exact sciences and technology Frequency division multiplexing Information, signal and communications theory Iterative methods Modulation Modulation, demodulation Multiplexing Noise OFDM modulation OFDMA PAPR Peak to average power ratio Signal and communications theory Signal processing Signal, noise Simulation Subcarriers Symbols System performance Systems engineering and theory Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Wireless communication |
| title | Estimation and compensation of clipping noise in OFDMA systems |
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