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» On the Capacity of OFDM Systems with Receiver I Q Imbalance
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ICC
2008
IEEE
106views Communications» more  ICC 2008»
13 years 11 months ago
On the Capacity of OFDM Systems with Receiver I/Q Imbalance
—OFDM systems have gained outstanding popularity for high data rate wireless communications. In practice, however, the performance of OFDM systems is often limited due to hardwar...
Stefan Krone, Gerhard Fettweis
ICC
2008
IEEE
140views Communications» more  ICC 2008»
13 years 11 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
ICC
2007
IEEE
13 years 11 months ago
Low-Complexity EM-based Joint CFO and IQ imbalance Acquisition
—New air interfaces are currently being developed to meet the high spectral efficiency requirements of the emerging wireless communication systems. In this context, OFDM is cons...
François Horlin, André Bourdoux, Edu...
ICC
2007
IEEE
164views Communications» more  ICC 2007»
13 years 11 months ago
Communication Limits with Low Precision Analog-to-Digital Conversion at the Receiver
— We examine the Shannon limits of communication systems when the precision of the analog-to-digital conversion (ADC) at the receiver is constrained. ADC is costly and powerhungr...
Jaspreet Singh, Onkar Dabeer, Upamanyu Madhow
WCNC
2008
IEEE
13 years 11 months ago
Three-Stage Serially Concatenated Codes and Iterative Center-Shifting K-Best Sphere Detection for SDM-OFDM: An EXIT Chart Aided
—Iterative K-best sphere detection (SD) and channel decoding is appealing, since it is capable of achieving a nearmaximum-a-posteriori (MAP) performance at a low complexity. Howe...
Li Wang, Lei Xu, Sheng Chen, Lajos Hanzo