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Performance Evaluation of Decoding Algorithms for Multi-Layered STBC-OFDM systems

Summary: Performance Evaluation of Decoding Algorithms for
Multi-Layered STBC-OFDM systems
S. Al-Ghadhban, M. Mohammad, B. Woerner and R. Buehrer
Mobile and Portable Radio Research Group
Virginia Polytechnic Institute and State University
E-Mail: {samir, maruf}@vt.edu
Abstract: In this paper, we study and compare the performance
of several detection algorithms for high data rate OFDM based
systems, such as WLANs. The proposed architecture combines
transmit diversity and spatial multiplexing. The single user's
data are demultiplexed into layers of information and each layer
is encoded independently by a space time block coder. The output
is OFDM modulated and transmitted over multiple transmit
antennas. At the receiver, after OFDM demodulation, group
nulling/ interference cancellation and joint maximum likelihood
detection algorithms are employed to detect the transmitted
symbols. The performance and tradeoff of the algorithms are
compared and evaluated.
New high data rate Wireless LANs (WLANs), such as


Source: Al-Ghadhban, Samir - Electrical Engineering Department, King Fahd University of Petroleum and Minerals


Collections: Energy Storage, Conversion and Utilization