STRUCTURAL RISK MINIMIZATION FOR ROBUST BLIND IDENTIFICATION OF SPARSE SIMO CHANNELS (2008)
Dongho Han, Jose C. Principe, Liuqing Yang
In this paper the structural risk minimization (SRM) principle is applied to derive an iterative algorithm for blind identification of sparse single-input multiple-output (SIMO) channels. The key...
Battery Power Efficiency of PPM and FSK in Wireless Sensor Networks (2008)
Qiuling Tang, Liuqing Yang, Georgios B. Giannakis, Tuanfa Qin
Abstract — As sensor nodes are typically powered by nonrenewable batteries, energy efficiency is a critical factor in wireless sensor networks (WSNs). Orthogonal modulations appropriate for the...
Noncoherent Ultra-Wideband (De)Modulation (2008)
Liuqing Yang, Senior Member, Georgios B. Giannakis
Abstract—Ultra-wideband (UWB) radios have received increasing attention recently for their potential to overlay legacy systems, their low-power consumption and low-complexity implementation....
A General Model and SINR Analysis (2008)
Liuqing Yang, Student Member, Georgios B. Giannakis
Interference from co-existing narrowband services is a critical factor affecting performance of Ultra-Wideband (UWB) radio communications. There is clearly a need to quantify interference and compare...
Liuqing Yang, Student Member, Georgios B. Giannakis
Abstract — Ultra-Wideband (UWB) transmissions induce pronounced frequency-selective fading effects in their multipath propagation. Multipath diversity gains can be collected to enhance performance,...
Activities of the DEAD box (Asp-Glu-Ala-Asp) family of proteins- including RNA-dependent ATPase and RNA helicase- function in all organisms to sculpt RNA-RNA duplex and RNA-protein complexes,...
Thesis (Ph. D.)--Georgia State University, 2006.
Giannakis, “Optimal Training for MIMO Frequency-Selective Fading Channels (2005)
Xiaoli Ma, Liuqing Yang, Georgios B. Giannakis
High data rates give rise to frequency-selective channel effects. Space-time multiplexing and/or coding offer attractive means of combating fading, and boosting capacity of multi-antenna...
Giannakis, “Timing ultra-wideband signals with dirty templates (2005)
Liuqing Yang, Georgios B. Giannakis
Abstract—Ultra-wideband (UWB) technology for indoor wireless communications promises high data rates with low-complexity transceivers. Rapid timing synchronization constitutes a major challenge in...
Giannakis, “Optimal Training for MIMO Frequency-Selective Fading Channels (2005)
Xiaoli Ma, Liuqing Yang, Georgios B. Giannakis
Abstract—High data rates give rise to frequency-selective propagation effects. Space–time multiplexing and/or coding offer attractive means of combating fading and boosting capacity of...
Liuqing Yang, Georgios B. Giannakis
Abstract—Interference from coexisting narrowband services is a critical factor affecting performance of ultra-wideband (UWB) radio communications. There is clearly a need to quantify interference...
Giannakis, “Analog space-time coding for multiantenna Ultra-Wideband transmissions (2004)
Liuqing Yang, Student Member, Georgios B. Giannakis
Abstract—Ultra-wideband (UWB) transmissions have well-documented advantages for low-power, peer-to-peer, and multiple-access communications. Space–time coding (STC), on the other hand, has gained...
Giannakis, “Optimal pilot waveform assisted modulation for ultra-wideband communications (2004)
Liuqing Yang, Georgios B. Giannakis
Performance of Ultra-Wideband (UWB) communication systems can be enhanced by collecting multipath diversity gains, once the channels are acquired at the receiver. In this paper, we develop a novel...
Optimal Training for MIMO Frequency-Selective Fading Channels (2004)
Xiaoli Ma, Liuqing Yang, Student Member, Georgios B. Giannakis
High data rates give rise to frequency-selective propagation effects. Space-time multiplexing and/or coding offer attractive means of combating fading, and boosting capacity of multi-antenna...
Cross-band flexible UWB multiple access for high-rate multi-piconet WPANs (2004)
Liuqing Yang, Georgios B. Giannakis
Abstract—Emerging indoor technologies including wireless multimedia and personal area networks (WPANs) entail high-rate systems capable of supporting multiple users (piconets) with variable rates....
Digital-Carrier Multi-Band User Codes (2003)
For Baseband Uwb, Liuqing Yang, Georgios B. Giannakis
The growing interest towards Ultra-Wideband (UWB) communications stems from its unique features such as baseband operation, ample multipath diversity, and the potential of enhanced user capacity. But...
Designing Optimal Pulse-Shapers for Ultra-Wideband Radios (2003)
Xiliang Luo, Liuqing Yang, Georgios B. Giannakis
Ultra-Wideband (UWB) technology is gaining increasing interest for its potential application to short-range indoor wireless communications. Utilizing ultra-short pulses, UWB baseband transmissions...
Multi-stage block-spreading for Impulse Radio multiple access through ISI channels (2002)
Liuqing Yang, Student Member, Georgios B. Giannakis
Abstract—Transmitting digital information using ultra-short pulses, impulse radio (IR) has received increasing interest for multiple access (MA). When IRMA systems have to operate in dense...
Giannakis, “Symbol timing estimation in ultra wideband communications (2002)
Zhi Tian, Liuqing Yang, Georgios B. Giannakis, Houghton M
This paper takes on a cyclostationary approach to recover timing of ultra-wideband (UWB) transmissions over rich multipath em,ironments. It is demonstrated that timing dependent cyclic statistics...
Space-time Coding for Impulse Radio (2002)
Liuqing Yang, Geotxios B. Giannala's
Impulse Radio (IR) ultrawide band systems have well documented advantages for low-power peer-to-peer. and multiple access communicahons. Space-Time (ST) coding on the other hand, has gained...
Liuqing Yang, Georgios B. Giannakis
Impulse Radio (IR) has received Increasing interest for Multiple Access (MA). Operating in dense muhipath environments, IRMA systems are afibcted by the Multiple User Interlbrence (MUI) and...
UWB Timing Synchronization Using Dirty Templates (1998)
Yang, Liuqing, Giannakis, Georgios B.
Precise localization and reliable exchange of information among distributed sensors, soldiers and unmanned aerial/ground vehicles (UAVs/UGVs) are important for tactical communications. To this end,...
Non-Data Aided Timing Acquisition Of Ultra-Wideband (1994)
Transmissions Using Cyclostationarity, Liuqing Yang, Zhi Tian, Georgios B. Giannakis
Low-complexity rapid timing acquisition constitutes a major challenge in realizing the high potential that ultra-wideband (UWB) wireless technology promises for indoor communications. We derive and...
A high-throughput method to monitor the expression of microRNA precursors
Schmittgen, Thomas D., Jiang, Jinmai, Liu, Qian, Yang, Liuqing
microRNAs (miRNAs) are small, functional, non-coding RNAs. miRNAs are transcribed as long primary transcripts (primary precursors) that are processed to the ∼75 nt precursors (pre-miRNAs) by the...
Lin, Chunru, Yang, Liuqing, Yang, Jenny J., Huang, Youliang, Liu, Zhi-Ren
We have previously demonstrated that p68 RNA helicase, as an essential human splicing factor, acts at the U1 snRNA and 5′ splice site (5′ss) duplex in the pre-mRNA splicing process. To further...
A high-throughput method to monitor the expression of microRNA precursors
Schmittgen, Thomas D., Jiang, Jinmai, Liu, Qian, Yang, Liuqing
microRNAs (miRNAs) are small, functional, non-coding RNAs. miRNAs are transcribed as long primary transcripts (primary precursors) that are processed to the ∼75 nt precursors (pre-miRNAs) by the...
Lin, Chunru, Yang, Liuqing, Yang, Jenny J., Huang, Youliang, Liu, Zhi-Ren
We have previously demonstrated that p68 RNA helicase, as an essential human splicing factor, acts at the U1 snRNA and 5′ splice site (5′ss) duplex in the pre-mRNA splicing process. To further...