RESEARCH PAPERS

space time block codes for wireless channel 2012




Bit error rate evaluation for orthogonal space-time block codes in the presence of channel estimation errors
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In this doctoral thesis, we investigate the impact of imperfect knowledge of the wireless channel on the performance of orthogonal space-time block codes (OSTBCs). We derive closed-form bit error rate (BER) expressions for OST-BCs operating over Rayleigh fading 

Orthogonal Space-Time Block Codes for 6 Transmit Antennas in Space Time Block codes
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ABSTRACT –Space–time block codes from orthogonal design have two advantages, namely, fast maximum–likelihood (ML) decoding and full diversity. Rate 1 real space–time codes (real orthogonal design) for multiple transmit antennas have been constructed from the 

Adaptive transmission in MIMO AF relay networks with orthogonal space-time block codes over Nakagami-m fading
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ABSTRACT In this article, we apply different adaptive transmission techniques to dual-hop multiple-input multiple-output amplify-and-forward relay networks using orthogonal space- time block coding over independent Nakagami-m fading channels. The adaptive 

Performance Evaluation of Orthogonal Space-Time Block Codes in MIMO Wireless Communications
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ABSTRACT With the integration of voice, Internet and multimedia applications in next generation wireless mobile communication, the demand for reliable high data rate and quality of service is growing at a very rapid pace. The increasing requirements on the 

Relay on-off threshold for NDF protocol with distributed orthogonal space-time block codes
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ABSTRACT In this article, a relay on-off threshold (ROT) based on symbol error rate is derived for the cooperative communication networks with multiple antennas, where the non- orthogonal decode-and-forward (NDF) protocol with source antenna switching and linear 

Rank codes over Gaussian integers and space time block codes
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ABSTRACT Maximum rank distance (MRD) codes have been used for the construction of space time block code (STBC) using a matrix method. Like orthogonal STBC's in most popular cases, MRD-STBC's can also achieve full diversity. Though an OSTBC is known to yield 


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