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ICC
2008
IEEE
140views Communications» more  ICC 2008»
14 years 1 months ago
Numerical Performance Evaluation of impaired OFDM Links using Alamouti Space Time Coding
—In this paper we present an analytical approach to evaluate the M-QAM bit error rate (BER) as well as channel capacity of Alamouti space time coded OFDM systems in case of direc...
Marco Krondorf, Gerhard Fettweis
ISCAS
2003
IEEE
95views Hardware» more  ISCAS 2003»
14 years 22 days ago
Analog representation and digital implementation of OFDM systems
Many existing results on the analysis of OFDM systems are based on an analog representation. The actual implementation of OFDM transmitters typically consists of a discrete DFT ma...
Yuan-Pei Lin, See-May Phoong
ICC
2007
IEEE
149views Communications» more  ICC 2007»
14 years 1 months ago
Synchronization Signal Design for OFDM Based On Time-Frequency Hopping Patterns
— In an OFDM system, channel estimation can be considered as sampling the time-frequency response of the channel through a number of known pilot symbols placed across the time-fr...
Jiann-Ching Guey
JCM
2007
78views more  JCM 2007»
13 years 7 months ago
Blind CFO Estimators for OFDM/OQAM Systems With Null Subcarriers
— This paper deals with the problem of blind carrier-frequency offset (CFO) estimation in OFDM systems based on offset quadrature amplitude modulation (OFDM/OQAM) with null subca...
Tilde Fusco, Mario Tanda
ICASSP
2011
IEEE
12 years 11 months ago
Pilot optimization for time-delay and channel estimation in OFDM systems
Orthogonal frequency division multiplexing (OFDM) communication systems require accurate estimation of timing offset and channel impulse response in order to achieve desirable per...
Michael D. Larsen, Gonzalo Seco-Granados, A. Lee S...