Search results for "3G mobile communication"

showing 2 items of 2 documents

Joint LMMSE equalizer for HSDPA in full-rate space time transmit diversity schemes

2005

This contribution presents a joint linear minimum mean square error (LMMSE) equalizer for full-rate space-time transmit diversity multi-code schemes based on W-CDMA, featuring two and four transmit antennas. Specifically, high-rate, high load systems are targeted, in order to analyze the high speed downlink packet access (HSDPA) of 3GPP Release 6. We derive an equivalent transmission scheme to equalize the received sufficient statistic in a single stage. To reduce the effects of multipath and multiuser interference, and to provide spatial and frequency diversity at the receiver, an LMMSE equalizer is employed. Computer simulations confirm that the proposed schemes achieve robust performance…

Minimum mean square errorComputer scienceSettore ING-INF/03 - Telecomunicazionileast mean squares methodsComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSEqualizerAdaptive equalizerData_CODINGANDINFORMATIONTHEORYFull RateTransmit diversityTransmission (telecommunications)3G mobile communicationantenna arrayfading channelTelecommunications linkdiversity receptionComputer Science::Networking and Internet ArchitectureElectronic engineeringequaliserFadingMultipath propagationComputer Science::Information TheoryCommunication channelDiversity scheme
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Estimating Applicability of New Mobile Content Formats to Organizational Use

2003

Innovations on information and communication technology reshape organizational communication. Our ability to estimate applicability of new technologies and content formats to organizational use has been limited to generic quantitative methods at the level of technologies and industries and elaborate qualitative methods targeting specific phenomena at the organizational level. In this paper we estimate quantitatively the applicability of MMS, SMS, XHTML, and XML to organizational use based on an analysis of all communication of an organization unit. We enumerate over 700 communication genres using a genre-based information systems planning method, categorise them with taxonomy of communicati…

3G mobile communicationmobile computingmultimedia communicationelectronic data interchangeelectronic messaging
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