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TWC
2010
9 years 6 months ago
Frame detection and timing acquisition for OFDM transmissions with unknown interference
Abstract--Frame detection and timing acquisition are challenging tasks in orthogonal frequency-division multiplexing systems plagued by narrowband interference (NBI). Most existing...
Luca Sanguinetti, Michele Morelli, H. Vincent Poor
TSP
2008
99views more  TSP 2008»
9 years 11 months ago
Carrier Frequency Offset Mitigation in Asynchronous Cooperative OFDM Transmissions
Carrier frequency offset (CFO) mitigation is critical for orthogonal frequency-division multiplexing (OFDM)-based cooperative transmissions because even small CFO per transmitter m...
Xiaohua Li, Fan Ng, Taewoo Han
ICC
2007
IEEE
146views Communications» more  ICC 2007»
10 years 3 months ago
BER of MIMO-OFDM Systems with Carrier Frequency Offset and Channel Estimation Errors
Abstract-- Performance analysis of Multiple-input Multipleoutput (MIMO) Orthogonal Frequency-Division Multiplexing (OFDM) systems with carrier frequency offset and channel estimati...
Zhongshan Zhang, Wei Zhang, Chintha Tellambura
WCC
2005
Springer
140views Cryptology» more  WCC 2005»
10 years 5 months ago
Constructions of Complementary Sequences for Power-Controlled OFDM Transmission
We present constructions of polyphase sequences suitable for the use as codewords in orthogonal frequency-division multiplexing (OFDM) with strictly bounded peak-to-mean envelope p...
Kai-Uwe Schmidt, Adolf Finger
VTC
2006
IEEE
101views Communications» more  VTC 2006»
10 years 5 months ago
Transmitter Precoding for Orthogonal Space-Time Block-Coded OFDM in Transmit-Antenna and Path-Correlated Channels
Abstract— Orthogonal space-time block-coded (OSTBC) orthogonal frequency-division multiplexing (OFDM) links for frequency-selective multiple-input multiple-output (MIMO) channels...
Yu Fu, Witold A. Krzymien, Chintha Tellambura
VTC
2006
IEEE
10 years 5 months ago
An Initial Timing Offset Estimation Method for OFDM Systems in Rayleigh Fading Channel
- An initial timing offset estimation method for orthogonal frequency-division multiplexing (OFDM) systems is proposed. Conventional preamble-based synchronization methods result i...
Seung Duk Choi, Jung Min Choi, Jae Hong Lee
VTC
2007
IEEE
10 years 5 months ago
A Tail-Biting Turbo Coded OFDM System for PAPR and BER Reduction
— In a turbo coded orthogonal frequency-division multiplexing (TCOFDM) system, low peak-to-average power ratio (PAPR) can be achieved by selective-mapping (SLM). In this paper, w...
Yung-Chih Tsai, Yeong-Luh Ueng
VTC
2007
IEEE
108views Communications» more  VTC 2007»
10 years 5 months ago
OFDM with Cyclic-Pilot Time Diversity
Abstract— We present a novel transceiver design for orthogonal frequency-division multiplexing (OFDM) wireless systems employing pilot symbol aided channel estimation (PSACE). Th...
Ali Yazdanpanah, Behrang Nosrat-Makouei, Rodney G....
SIPS
2007
IEEE
10 years 5 months ago
Peak-to-Average Power Ratio Reduction in an FDM Broadcast System
Digital predistortion is a technique used to reduce the signal dynamic range in a multichannel system in order to improve power amplifier (PA) efficiency. These techniques have be...
Zhengya Zhang, Renaldi Winoto, Ahmad Bahai, Borivo...
ICC
2007
IEEE
121views Communications» more  ICC 2007»
10 years 6 months ago
Peak to Average Power Reduction for Low-Power OFDM Systems
— For Orthogonal Frequency-Division Multiplexing (OFDM) systems, Peak to Average Power Ratio (PAPR) can be a major impediment to efficient transmission due to the need to use in...
Everest W. Huang, Gregory W. Wornell
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