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- Bit and Power Allocation for MIMO-OFDM Systems With Spatial Mode Selection Over Frequency- Space- Time- Selective Channels
- Multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) system is known to reduce the negative impact of the time dispersive characteristic of channels and show high spectral efficiency. Various spatial modes, such as multiplexing and diversity, can be used to improve the spectral efficiency further. This paper proposes the...
- Tags: Seoul National University, Allocation, MIMO-OFDM
- White papers 2004-10-04
- A Low-Complexity Receiver for OFDM in Doubly-Selective Channels
- Orthogonal frequency division multiplexing OFDM systems may experience significant inter-carrier interference ICI when used in time- and frequency-selective, or doubly- selective, channels. In such cases, the classical symbol estimation schemes, e.g., minimum mean-squared error MMSE and zero-forcing ZF estimation, require matrix inversion that is prohibitively complex for large symbol lengths....
- Tags: Ohio State University, OFDM, Wireless
- White papers
- Creating and Restoring a Selective Solaris System Image Using Red Hat Network Satellite
- This paper will help to create a selective image of a client system using Red Hat Network RHN Satellite. This image will include patches, patch clusters, and configuration files. The RHN Satellite can be a useful location to store and track changes to a selective Solaris client image, including configuration...
- Tags: Red Hat Inc., Red Hat Network, Satellite, Open Source, Sun Solaris, Operating Systems, Software
- White papers 2006-01-01
- Creating and Restoring a Selective System Image Using Red Hat Network Satellite
- This paper will help to create a selective image of a client system using Red Hat Network RHN Satellite. This selective image will include the packages and errata installed on a client at a given time as well as the configuration files and custom software installed on that client. Careful...
- Tags: Red Hat Inc., Red Hat Network, Satellite, Open Source
- White papers 2006-01-01
- Self-Selective Routing for Wireless Ad Hoc Networks
- This paper presents self-selective routing, a self-maintained and fault-tolerant routing protocol for wireless ad hoc networks. The protocol combines broadcast radio transmissions with the novel autonomous programming technique, called self-selection, to support routing without the overhead of traditional ad hoc route maintenance. Moreover, the protocol routes packets through a dynamically...
- Tags: Network, IEEE, Wi-Fi, Wireless, Networking
- White papers 2005-04-20
- Noncoherent Space-Frequency Coded MIMO-OFDM
- Recently, the use of coherent space-frequency coding in orthogonal frequency division multiplexing OFDM-based frequency-selective multiple-input multiple-output MIMO antenna fading channels has been proposed. Acquiring knowledge of the fading coefficients in a MIMO channel is already very challenging in the frequency-flat fast fading case. In the frequency-selective case, this task becomes...
- Tags: Channel, MIMO, IEEE, MIMO-OFDM, OFDM, Wireless
- White papers 2005-02-14
- Performance of Space-Time Block Coded OFDM in Time-Selective Macrocell Channel Environments
- Space-time coding was first introduced based on the quasi-static fading channel assumption. In this paper, this assumption is not used as it is assumed that the channel is time-selective Rayleigh fading. As such the orthogonality between subcarries in time-selective channel will not hold, resulting in interchannel interference ISI. To combat...
- Tags: Channel, Performance, Environment, IEEE, OFDM, Wireless
- White papers 2006-09-26
- A Scheduling Method for Bandwidth Reduction in Selective Contents Broadcasting
- Due to the recent popularization of digital broadcasting systems, selective contents, i.e., users watch their selected contents, have attracted great attention. For example, in a quiz program, a user selects his/her answer and watches the video content corresponding to the answer. Although a server can deliver content according to users'...
- Tags: Bandwidth, Kyoto University, Broadcasting
- White papers 2006-11-15
- Multiuser Interference Cancellation for OFDM Systems With Frequency Offset
- This paper proposes a method to counteract the effect of different frequency offsets of the users in a OFDMA uplink system with frequency selective Rayleigh fading channel. The multiple access interference is reduced by reconstructing and removing the interfering signals. This is done by accomplish Successive or Selective Cancellation. The...
- Tags: Frequency, Access Interference, OFDM, Wireless
- White papers 2003-07-15
- MPPlaya (exe)
- MPPlaya is a database music program, which can be used to organize all your music in an easy way. You can make play lists either selective or based on SQL queries. You can use it to just play music in a Stand-A-Lone mode, or you can use it Hand-On and...
- Tags: Query, Music, MPPlaya, Storage, Databases, Hardware, Enterprise Software, Software, Data Management
- Software downloads 2006-03-23
- SCVitae - Control Resume System (exe)
- Curriculum Vitae and selective Process Control for Human Resource or Recruitment area It permit to filter resume by requirement criterias and to print in then flexible way. Is possible follow up the process selective for candidate or employer. Control jobs opened to all selected candidates step-by-step Print resume of flexible...
- Tags: Candidate, Recruitment & Selection, Human Resources, Workforce Management
- Software downloads 2007-05-10
- WindowsME/acting like it's in safe mode?
- Comment from iststudent1@... on 09/18/06 : Thank-you Col,The desktop screen does NOT have safe mode in any of the corners so you are right. I guess all the drivers are not loading. I backed-up everything yesterday and reinstalled Windows ME yet the same animated screen appears. Any more ideas to...
- Tags: Microsoft Windows, Thank-you Col
- Q&A 2006-09-19
- IBM TotalStorage Virtual Tape Server Delete Expired Volume Data Function and Peer to Peer "No Copy" Mode Description and Usage, V1.2
- With the General Availability of VTS Virtual Tape Server Release 7.2 (2.30.720.x), the Peer-to-Peer PtP Selective PtP Copy Function was introduced. The ability to choose the copy mode by virtual tape mount requires the Advanced Function Feature Codes (4001, etc.) be installed and enabled on the PtP VTS. The choices...
- Tags: P2P, Server, Copy, IBM TotalStorage, IBM Corp., Peer To Peer (P2P), Internet
- White papers 2006-03-27
- IE Selective History Removal Tool (zip)
- The IE Selective History Removal Tool conceals surfing habits from suspicious parents or spouses. We found that deleting visited URL's was simply not enough. In several instances, suspicious wives even noticed that the number of saved URLs would decrease--that's why we included a filler capability (cover up questionable sites with...
- Tags: Microsoft Internet Explorer, IE Selective History Removal Tool, Web Browsers, Internet
- Software downloads 2005-11-10
- EMF Parser (rar)
- Using EMFParser to view windows EMF file Enhanced Meta File in many ways, View the EMF picture itself; View the EMF file header; View the EMF file records in HEX mode; View the EMF file records in GDI-Call mode. I think EMFParser is easy enough to be used, so that...
- Tags: Picture, Mode, EMF, Construction
- Software downloads 2006-08-16
- Selective-TCP for Wired/Wireless Networks
- One of the main reasons for TCP's degraded performance in wireless networks is TCP's interpretation that packet loss is caused by congestion. However, in wireless networks, packet loss occurs mostly due to high bit error rate, packet corruption, or link failure. TCP performance in wired/wireless networks may be substantially improved...
- Tags: Network, TCP, Tcp/Ip, Networking, Wireless
- White papers 2006-09-29
- Bit Interleaved Coded Modulation With Space Time Block Codes for OFDM Systems
- Wireless systems often implement one or more types of diversity in order to achieve reliable communication. Different types of diversity techniques such as temporal, frequency, code, and spatial have been developed in the literature. In addition to the destructive multipath nature of wireless channels, frequency selective channels pose InterSymbol Interference...
- Tags: Channel, OFDM, Wi-Fi, Wireless
- White papers 2006-04-05
- Color Mechanic Standard Edition (zip)
- Color Mechanic is a selective color correction plug-in for Adobe Photoshop or Photoshop Elements. What makes Color Mechanic so powerful is that it lets you change one or more colors in an image without changing any other colors in the image and without the painstaking work of selecting the parts...
- Tags: Adobe PhotoShop, Color, Image, Color Mechanic
- Software downloads 2005-11-09
- A Space-Time Block-Coded OFDM Scheme for Unknown Frequency-Selective Fading Channels
- This paper introduces a space-time block-coded orthogonal frequency-division multiplexing (STBC-OFDM) scheme for frequency-selective fading channels, which does not require channel knowledge either at the transmitter or at the receiver. The decoding algorithm is based on generalized maximum-likelihood sequence estimation. Due to the assumed orthogonality structure of STBC, the decoding rule...
- Tags: University Of Texas, OFDM, Engineering, Wireless
- White papers
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