Signal and interference statistics of a CDMA system with feedback power control
Power control is essential in the use of direct-sequence code-division multiple-access (CDMA) techniques over fading radio channels. The paper investigates a feedback power control approach that allows power commands to be updated at a higher rate than the rate of multipath fading. The signal and in...
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Veröffentlicht in: | IEEE transactions on communications 1993-11, Vol.41 (11), p.1626-1634 |
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creator | Ariyavisitakul, S. Li Fung Chang |
description | Power control is essential in the use of direct-sequence code-division multiple-access (CDMA) techniques over fading radio channels. The paper investigates a feedback power control approach that allows power commands to be updated at a higher rate than the rate of multipath fading. The signal and interference statistics as received at the base stations after power control are obtained for a simulated CDMA system which includes multiple base stations with diversity receivers and a large number of power-controlled users continuously moving at various speeds. The authors show that often-used analyses based on perfect average power control lead to optimistic capacity results (by about 25%) because interference is underestimated by as much as 1 dB.< > |
doi_str_mv | 10.1109/26.241743 |
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The paper investigates a feedback power control approach that allows power commands to be updated at a higher rate than the rate of multipath fading. The signal and interference statistics as received at the base stations after power control are obtained for a simulated CDMA system which includes multiple base stations with diversity receivers and a large number of power-controlled users continuously moving at various speeds. The authors show that often-used analyses based on perfect average power control lead to optimistic capacity results (by about 25%) because interference is underestimated by as much as 1 dB.< ></description><identifier>ISSN: 0090-6778</identifier><identifier>EISSN: 1558-0857</identifier><identifier>DOI: 10.1109/26.241743</identifier><identifier>CODEN: IECMBT</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Base stations ; Error correction ; Exact sciences and technology ; Fading ; Feedback ; Interference ; Multiaccess communication ; Power control ; Power system modeling ; Radio link ; Radiocommunication specific techniques ; Radiocommunications ; Statistics ; Telecommunications ; Telecommunications and information theory</subject><ispartof>IEEE transactions on communications, 1993-11, Vol.41 (11), p.1626-1634</ispartof><rights>1994 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c275t-26f02685a49bd1618f9be78629ed209ec5adac0e767ca7296b1bd3e232994a743</citedby><cites>FETCH-LOGICAL-c275t-26f02685a49bd1618f9be78629ed209ec5adac0e767ca7296b1bd3e232994a743</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/241743$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54736</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/241743$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3808909$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Ariyavisitakul, S.</creatorcontrib><creatorcontrib>Li Fung Chang</creatorcontrib><title>Signal and interference statistics of a CDMA system with feedback power control</title><title>IEEE transactions on communications</title><addtitle>TCOMM</addtitle><description>Power control is essential in the use of direct-sequence code-division multiple-access (CDMA) techniques over fading radio channels. The paper investigates a feedback power control approach that allows power commands to be updated at a higher rate than the rate of multipath fading. The signal and interference statistics as received at the base stations after power control are obtained for a simulated CDMA system which includes multiple base stations with diversity receivers and a large number of power-controlled users continuously moving at various speeds. The authors show that often-used analyses based on perfect average power control lead to optimistic capacity results (by about 25%) because interference is underestimated by as much as 1 dB.< ></description><subject>Applied sciences</subject><subject>Base stations</subject><subject>Error correction</subject><subject>Exact sciences and technology</subject><subject>Fading</subject><subject>Feedback</subject><subject>Interference</subject><subject>Multiaccess communication</subject><subject>Power control</subject><subject>Power system modeling</subject><subject>Radio link</subject><subject>Radiocommunication specific techniques</subject><subject>Radiocommunications</subject><subject>Statistics</subject><subject>Telecommunications</subject><subject>Telecommunications and information theory</subject><issn>0090-6778</issn><issn>1558-0857</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><recordid>eNo9kL1PwzAUxC0EEqUwsDJ5YGFIeXYSf4xV-ZSKOgBz9OI8gyFNKjtS1f-eolSdbrjfnXTH2LWAmRBg76WayULoIj9hE1GWJgNT6lM2AbCQKa3NObtI6QcACsjzCVu9h68OW45dw0M3UPQUqXPE04BDSENwifeeI188vM152qWB1nwbhm_uiZoa3S_f9FuK3PXdEPv2kp15bBNdHXTKPp8ePxYv2XL1_LqYLzMndTlkUnmQypRY2LoRShhva9JGSUuNBEuuxAYdkFbaoZZW1aJucpK5tLbA_bwpuxt7XexTiuSrTQxrjLtKQPX_RCVVNT6xZ29HdoPJYesjdi6kYyA3YCzYPXYzYoGIju6h4w8_JGUV</recordid><startdate>19931101</startdate><enddate>19931101</enddate><creator>Ariyavisitakul, S.</creator><creator>Li Fung Chang</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19931101</creationdate><title>Signal and interference statistics of a CDMA system with feedback power control</title><author>Ariyavisitakul, S. ; Li Fung Chang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c275t-26f02685a49bd1618f9be78629ed209ec5adac0e767ca7296b1bd3e232994a743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1993</creationdate><topic>Applied sciences</topic><topic>Base stations</topic><topic>Error correction</topic><topic>Exact sciences and technology</topic><topic>Fading</topic><topic>Feedback</topic><topic>Interference</topic><topic>Multiaccess communication</topic><topic>Power control</topic><topic>Power system modeling</topic><topic>Radio link</topic><topic>Radiocommunication specific techniques</topic><topic>Radiocommunications</topic><topic>Statistics</topic><topic>Telecommunications</topic><topic>Telecommunications and information theory</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ariyavisitakul, S.</creatorcontrib><creatorcontrib>Li Fung Chang</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>IEEE transactions on communications</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Ariyavisitakul, S.</au><au>Li Fung Chang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Signal and interference statistics of a CDMA system with feedback power control</atitle><jtitle>IEEE transactions on communications</jtitle><stitle>TCOMM</stitle><date>1993-11-01</date><risdate>1993</risdate><volume>41</volume><issue>11</issue><spage>1626</spage><epage>1634</epage><pages>1626-1634</pages><issn>0090-6778</issn><eissn>1558-0857</eissn><coden>IECMBT</coden><abstract>Power control is essential in the use of direct-sequence code-division multiple-access (CDMA) techniques over fading radio channels. The paper investigates a feedback power control approach that allows power commands to be updated at a higher rate than the rate of multipath fading. The signal and interference statistics as received at the base stations after power control are obtained for a simulated CDMA system which includes multiple base stations with diversity receivers and a large number of power-controlled users continuously moving at various speeds. The authors show that often-used analyses based on perfect average power control lead to optimistic capacity results (by about 25%) because interference is underestimated by as much as 1 dB.< ></abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/26.241743</doi><tpages>9</tpages></addata></record> |
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subjects | Applied sciences Base stations Error correction Exact sciences and technology Fading Feedback Interference Multiaccess communication Power control Power system modeling Radio link Radiocommunication specific techniques Radiocommunications Statistics Telecommunications Telecommunications and information theory |
title | Signal and interference statistics of a CDMA system with feedback power control |
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