Performance of Alamouti Transmit Diversity Over Time-Varying Rayleigh-Fading Channels
نویسندگان
چکیده
منابع مشابه
Performance of transmit diversity over time-varying Rayleigh-fading channels
We analyze the impact of a time-varying Rayleigh fading channel on the performance of an Alamouti transmit-diversity scheme. We propose several detection strategies for mitigating the effects of a timevarying channel, and derive expressions for their bit-error probability as a function of the channel correlation coefficient ρ.
متن کاملPerformance of Transmit Time Selection Diversity in Multipath Fading Channels
We examine transmit time selection diversity (TTSD) concept, where downlink transmission is suspended if the received SNR in the mobile station falls below a given threshold. In case of FDD systems, this requires a fast feedback channel from mobile to base like the one in the FDD WCDMA system. Bit error probability formulas are derived showing that TTSD is able to provide gains up to several de...
متن کاملPerformance analysis of MIMO-SESS with Alamouti scheme over Rayleigh fading channels
Self-encoded spread spectrum (SESS) is a novel modulation technique that acquires its spreading sequence from the random input data stream rather than through the use of the traditional pseudo-noise code generator. It has been incorporated with multiple-input multiple-output (MIMO) systems as a means to combat fading in wireless channels. In this paper, we present the analytical study of the bi...
متن کاملA LDPC-Coded Distributed Alamouti Space-time Relay Cooperation Scheme over Rayleigh Fading Channels
An efficient distributed Alamouti Space-time coded relay cooperation scheme is proposed over a Rayleigh fading channel, where structured irregular systematic low-densityparity-check (LDPC) codes are employed. In the known channel state information (CSI) scenario, a concatenation of combiner and joint iterative decoder is effectively carried out in the destination. The theoretical analysis and n...
متن کاملBit Error Performance for Asynchronous Ds Cdma Systems Over Multipath Rayleigh Fading Channels (RESEARCH NOTE)
In recent years, there has been considerable interest in the use of CDMA in mobile communications. Bit error rate is one of the most important parameters in the evaluation of CDMA systems. In this paper, we develop a technique to find an accurate approximation to the probability of bit error for asynchronous direct–sequence code division multiple–access (DS/CDMA) systems by modeling the multipl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Wireless Communications
سال: 2004
ISSN: 1536-1276
DOI: 10.1109/twc.2004.833524