OFDM for Wireless Multimedia Communications
OFDM for Wireless Multimedia Communications
Pilot tone selection for channel estimation in a mobile OFDM system
IEEE Transactions on Consumer Electronics
A road to future broadband wireless access: MIMO-OFDM-Based air interface
IEEE Communications Magazine
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
Space-time block coding for wireless communications: performance results
IEEE Journal on Selected Areas in Communications
From theory to practice: an overview of MIMO space-time coded wireless systems
IEEE Journal on Selected Areas in Communications
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With equipping multiple antennas at both transmitter and receiver ends, the desired signals in the OFDM wireless communications could be transmitted and received through multiple uncorrelated channels for achieving twofold benefits and high flexibility. For this kind of MIMO-OFDM systems, if the assistance of channel estimation is under consideration, the overall system performance is able to be further enhanced. This paper proposed a pilot-symbol-assisted channel estimation technique for MIMO architecture by assigning known pilot symbols orthogonally between different transmitting antennas. The mixed transmitted signals could be completely separated at the receiver end due to the orthogonal property of pilot blocks. Some simulation results are given to illustrate the superior overall performance that can beachieved by the proposed channel estimation algorithm in MIMO-OFDM systems under COST 207 mobile wireless environments.