Search Results - "Jiann-An Tsai"
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1
BER performance of a uniform circular array versus a uniform linear array in a mobile radio environment
Published in IEEE transactions on wireless communications (01-05-2004)“…In this letter, we present a comparison between the bit error rate (BER) performance of a uniform circular array (UCA) and a uniform linear array (ULA)…”
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Journal Article -
2
Spatial fading correlation function of circular antenna arrays with Laplacian energy distribution
Published in IEEE communications letters (01-05-2002)“…We derive an analytical formula for the fading correlation function of a uniform circular array (UCA) when the angular energy follows a Laplacian distribution…”
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Journal Article -
3
Uplink Power Control for an OFDMA Mobile Cellular System
Published in 2007 IEEE 66th Vehicular Technology Conference (01-09-2007)“…In this paper, we will investigate the effects of uplink closed-loop power control in a mobile cellular system that employs OFDMA multiple access for the…”
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Conference Proceeding
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4
Intelligent antennas for wireless communications - Uplink
Published in Bell Labs technical journal (01-07-1999)“…Intelligent antennas have long been recognized as a method of improving the performance and capacity of wireless systems. However, only recently have they…”
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Journal Article -
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Performance of orthogonal transmit waveforms for CDMA uplink systems in MIMO Rayleigh channels
Published in 2002 IEEE Wireless Communications and Networking Conference Record. WCNC 2002 (Cat. No.02TH8609) (2002)“…In this paper, we extend our previous work (2001) to design orthogonal transmit waveforms (OTW) for CDMA systems in MIMO (multiple transmit/receive antennas)…”
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Conference Proceeding -
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Uplink Power Control for Next Generation Mobile Broadband Wireless Access Systems: System-Level Simulation Results
Published in IEEE Vehicular Technology Conference (01-09-2006)“…In uplink OFDM/A systems that support link adaptation, e.g., via adaptive modulation and coding (AMC), and/or HARQ schemes, there have been suggestions that…”
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Conference Proceeding -
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Analysis of optimal use of CQI channels for OFDMA systems
Published in VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference, 2005 (2005)Get full text
Conference Proceeding -
8
The ultra-wideband indoor channel
Published in 2004 IEEE 59th Vehicular Technology Conference. VTC 2004-Spring (IEEE Cat. No.04CH37514) (2004)“…This paper provides an analysis of indoor ultra-wideband channel measurements collected by Virginia Tech as part of DARPA's "Networking in Extreme Environments…”
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Conference Proceeding -
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Adaptive beamforming of uniform circular arrays (UCA) for wireless CDMA system
Published in Conference Record of Thirty-Fifth Asilomar Conference on Signals, Systems and Computers (Cat.No.01CH37256) (2001)“…We evaluate the performance of adaptive beamforming using uniform circular antenna arrays for wireless CDMA systems. Two types of uniform circular array…”
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Conference Proceeding -
10
Performance analysis of adaptive beamforming for OFDM-CDMA systems in ground-based communications
Published in The Thrity-Seventh Asilomar Conference on Signals, Systems & Computers, 2003 (2003)“…In this paper the use of adaptive antenna arrays for OFDM-CDMA system in ground-based communications is investigated. We present the performance of adaptive…”
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Conference Proceeding -
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Analytical space-time-frequency fading correlation for mobile vector channels
Published in The Thrity-Seventh Asilomar Conference on Signals, Systems & Computers, 2003 (2003)“…In this paper, we derive an analytical expression of the space-time-frequency fading correlation function for a multiple transmit and multiple receive antennas…”
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Conference Proceeding -
12
Performance of combined MMSE beamforming with parallel interference cancellation for overloaded OFDM-CDMA systems
Published in MILCOM 2002. Proceedings (2002)“…We propose a signal extraction method that combines MMSE beamforming with parallel interference cancellation (PIC) for an overloaded airborne communication…”
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Conference Proceeding -
13
Performance of low-complexity MMSE beamforming for WLAN systems
Published in IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 (2004)“…In this paper the use of adaptive antenna arrays for OFDM-based WLAN systems in indoor wireless environment is investigated. We present the performance of a…”
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Conference Proceeding -
14
Joint MMSE beamforming with SIC for an overloaded array system
Published in 2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277) (2001)“…We propose a new signal extraction method that combines MMSE beamforming with successive interference cancellation (SIC) for an overloaded antenna array…”
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Conference Proceeding -
15
Combined space-time diversity and interference cancellation for MIMO wireless systems
“…There is increasing interest in the exploitation of multiple-input and multiple-output (MIMO) channels to enhance the capacity of wireless systems. In this…”
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Dissertation -
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Combined space -time diversity and interference cancellation for MIMO wireless systems
Published 01-01-2002“…There is increasing interest in the exploitation of multiple-input and multiple-output (MIMO) channels to enhance the capacity of wireless systems. In this…”
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Dissertation -
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BER performance of a new space-time diversity scheme for encoded DS-CDMA
Published in 2004 IEEE Wireless Communications and Networking Conference (IEEE Cat. No.04TH8733) (2004)“…In this paper, we present the encoded bit-error-rate (BRR) performance of a new space-time transmit diversity scheme for cellular CDMA systems. The space-time…”
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Conference Proceeding -
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A new orthogonal transmit waveform with space-time diversity (OTW-STD) for wireless CDMA downlink systems
Published in Conference Record of Thirty-Fifth Asilomar Conference on Signals, Systems and Computers (Cat.No.01CH37256) (2001)“…We propose a new orthogonal transmit waveform with space-time diversity (OTW-STD) for wireless CDMA downlink systems. We evaluate the performance of the…”
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Conference Proceeding -
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BER analysis of orthogonal transmit waveform with space-time diversity for MIMO CDMA systems
Published in Proceedings IEEE 56th Vehicular Technology Conference (2002)“…In this paper, we evaluate the performance of an orthogonal transmit waveform that exploits space-time diversity (OTW-STD) in a CDMA cellular environment. The…”
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Conference Proceeding -
20
Performance of antenna diversity combining for OFDM-CDMA systems in ground-based communications
Published in MILCOM 2002. Proceedings (2002)“…We present the comparative diversity performance of the uniform circular array (UCA) and the uniform linear array (ULA) in ground-based communications. In…”
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Conference Proceeding