A Robust MMSE Equalizer for MIMO Enhanced HSDPA
In this contribution, we analyze the performance of MIMO enhanced high speed downlink packet access (HSDPA) for UMTS in realistic, frequency-selective propagation channels. At the receiver, an MMSE equalizer is implemented to restore the orthogonality of the UMTS spreading codes and to perform the M...
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| creator | Mehlfuhrer, C. Rupp, M. |
| description | In this contribution, we analyze the performance of MIMO enhanced high speed downlink packet access (HSDPA) for UMTS in realistic, frequency-selective propagation channels. At the receiver, an MMSE equalizer is implemented to restore the orthogonality of the UMTS spreading codes and to perform the MIMO detection. The matrix inversion, necessary for the MMSE equalization, is implemented in an iterative manner, requiring only mult-add operations. Since the algorithm is division-free, it is numerically stable, robust, and very well suited for fixed-point implementation. We show that initial convergence of the iterative algorithm can be achieved in only a few iterations. Moreover, we study the equalizer performance in terms of coded block error ratio for low and high code rates and find the proposed algorithm very suitable for approximating matrix inverses. |
| doi_str_mv | 10.1109/ACSSC.2006.356599 |
| format | Conference Proceeding |
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Moreover, we study the equalizer performance in terms of coded block error ratio for low and high code rates and find the proposed algorithm very suitable for approximating matrix inverses.</description><subject>3G mobile communication</subject><subject>Convergence</subject><subject>Downlink</subject><subject>Equalizers</subject><subject>Frequency</subject><subject>Iterative algorithms</subject><subject>MIMO</subject><subject>Multiaccess communication</subject><subject>Performance analysis</subject><subject>Robustness</subject><issn>1058-6393</issn><issn>2576-2303</issn><isbn>9781424407842</isbn><isbn>1424407842</isbn><isbn>9781424407859</isbn><isbn>1424407850</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2006</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNpVjstKw0AYRscbGGoeQNzMC0z6zz3_MsTUFhoqRtdlJpnBSG01aRf69AZ04-rjcODwEXLLIeMccF6UTVNmAsBkUhuNeEZStDlXQimwucZzkghtDRMS5MU_p8QlSTjonBmJ8pqk4_gGANxOiCIh84I-HfxpPNK6bipafZ7crv8OA42HgdarekOr_avbt6Gjy-b-sbghV9HtxpD-7Yy8LKrncsnWm4dVWaxZz60-stwH7h1Eh1aC9V3bCa04ciOFNAEdqoDRxylrogHwreyMsYJrobQKFuWM3P12-xDC9mPo393wtVXTby1y-QOkHkZG</recordid><startdate>200610</startdate><enddate>200610</enddate><creator>Mehlfuhrer, C.</creator><creator>Rupp, M.</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope></search><sort><creationdate>200610</creationdate><title>A Robust MMSE Equalizer for MIMO Enhanced HSDPA</title><author>Mehlfuhrer, C. ; Rupp, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i175t-8be1ba0fa97307bdcd25419163236e9a94e9fbfced6f600bc3d6672152454e793</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2006</creationdate><topic>3G mobile communication</topic><topic>Convergence</topic><topic>Downlink</topic><topic>Equalizers</topic><topic>Frequency</topic><topic>Iterative algorithms</topic><topic>MIMO</topic><topic>Multiaccess communication</topic><topic>Performance analysis</topic><topic>Robustness</topic><toplevel>online_resources</toplevel><creatorcontrib>Mehlfuhrer, C.</creatorcontrib><creatorcontrib>Rupp, M.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Mehlfuhrer, C.</au><au>Rupp, M.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>A Robust MMSE Equalizer for MIMO Enhanced HSDPA</atitle><btitle>2006 Fortieth Asilomar Conference on Signals, Systems and Computers</btitle><stitle>ACSSC</stitle><date>2006-10</date><risdate>2006</risdate><spage>129</spage><epage>133</epage><pages>129-133</pages><issn>1058-6393</issn><eissn>2576-2303</eissn><isbn>9781424407842</isbn><isbn>1424407842</isbn><eisbn>9781424407859</eisbn><eisbn>1424407850</eisbn><abstract>In this contribution, we analyze the performance of MIMO enhanced high speed downlink packet access (HSDPA) for UMTS in realistic, frequency-selective propagation channels. At the receiver, an MMSE equalizer is implemented to restore the orthogonality of the UMTS spreading codes and to perform the MIMO detection. The matrix inversion, necessary for the MMSE equalization, is implemented in an iterative manner, requiring only mult-add operations. Since the algorithm is division-free, it is numerically stable, robust, and very well suited for fixed-point implementation. We show that initial convergence of the iterative algorithm can be achieved in only a few iterations. Moreover, we study the equalizer performance in terms of coded block error ratio for low and high code rates and find the proposed algorithm very suitable for approximating matrix inverses.</abstract><pub>IEEE</pub><doi>10.1109/ACSSC.2006.356599</doi><tpages>5</tpages></addata></record> |
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| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | 3G mobile communication Convergence Downlink Equalizers Frequency Iterative algorithms MIMO Multiaccess communication Performance analysis Robustness |
| title | A Robust MMSE Equalizer for MIMO Enhanced HSDPA |
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