Frequency domain equalization space-time block-coded CDMA transmission system
نویسندگان
چکیده
منابع مشابه
Frequency domain equalization space-time block-coded CDMA transmission system
In this work we propose a space-time block-coded (STBF) CDMA transmission system suitable for use with frequency domain equalization (FDE) algorithms. We illustrate the FDE by implementing the maximal ratio combining, the zero forcing and the minimum mean squared error single user detection algorithms. A diversity gain analysis is developed and some interesting results are pointed out. It is sh...
متن کاملFrequency-domain Equalization for Block Cdma Transmission
Frequency-domain equalization (FDE) technique may play an important role for broadband packet transmission using MCand DS-CDMA. The downlink performance is significantly improved with FDE; however, the uplink performance is limited by the multi-access interference (MAI). To remove the MAI while gaining the frequency diversity effect through the use of FDE, frequency-domain block spread CDMA can...
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In the downlink of DS-CDMA, frequency-selectivity destroys the orthogonality of the user signals and introduces multiuser interference (MUI). Space-time chip equalization is an efficient tool to restore the orthogonality of the user signals and suppress the MUI. Furthermore, multiple-input multiple-output (MIMO) communication techniques can result in a significant increase in capacity. This pap...
متن کاملAdaptive frequency-domain joint equalization and interference cancellation for multi-user space-time block-coded systems
We develop an efficient adaptive receiver for joint equalization and interference cancellation for multi–user space–time block– coded transmissions. The receiver exploits the code structure and allows multiple user transmissions over frequency–selective fading channels with reduced complexity and lower system overhead. The adaptation scheme is based on a recursive least–squares implementation f...
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We develop an efficient adaptive receiver for joint equalization and interfercnce cancellation for multi-user space-time blockbcoded transmissions. The receiver exploits the rich code suucture and allows multiple user transmissions over frequency-selective fading channels with reduced compleiity and lower system overhead. The adaptation scheme is based on a recursive least-squares implementatio...
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ژورنال
عنوان ژورنال: EURASIP Journal on Wireless Communications and Networking
سال: 2011
ISSN: 1687-1499
DOI: 10.1186/1687-1499-2011-80