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Conference Papers

 

A Robust Maximum Likelihood Channel Estimator for OFDM Systems

Conference: IEEE Wireless Comm. and Networking Conf. (WCNC), March. 2007
Abstract

Application of existing maximum likelihood channel estimation (MLE) in OFDM systems requires knowledge of ELCIR for achieving optimum performance.Our analysis shows that the mean-squared error (MSE) is linearly related to ELCIR...... Full Article

A 90nm CMOS Variable-Gain Amplifier and RSSI Design for Wide-band Wireless Network Application

Conference: Solid-State Circuits Conference, Sept 2006. ESSCIRC 2006
Abstract

A VGA (variable-gain amplifier) integrated with RSSI (received signal strength indicator) function is designed and implemented in a 90nm CMOS technology...... Full Article

A 500MHz Bandwidth, 19dBm IIP3 VGA Integrated with 0.3dB Linearity Error

Journal: IEEE Journal of Solid State Circuits
Abstract

Wide band VGA (variable-gain amplifier) integrated with high linearity RSSI (received signal strength indicator) was designed in 90nm CMOS...... Full Article

A Scheme for Reducing Power Consumption of Mobile DTV Devices

Conference: GSPx-TV to Mobile Conf., March 2006
Abstract

Power consumption reduction is one of the critical issues in the implementation of a mobile and/or handheld digital television device. In this paper...... Full Article

An Iterative Channel Estimator for Indoor Wireless OFDM Systems

Conference: IEEE Int'l Conf. on Comm. Sys. (ICCS), Nov. 2006.
Abstract

...Our analysis shows that the mean-squared error (MSE) of a ML estimator is linearly related to the effective length of channel impulse response...... Full Article

An efficient low-cost LS equalization in COFDM based v systems by utilizing channel-stateinformation (CSI)

Conference: IEEE VTC- fall, 2005
Abstract

In this paper, a new CSI aided least square (LS) equalization is proposed for a COFDM based UWB system...... Full Article

A Digital Intermediate Frequency Demodulator for Pi/4 DQPSK based on Hard Limiter

Conference: IEEE PIMRC, 2005
Abstract

This paper proposes a new D-IF demodulation scheme for Pi/4 differential quadrature phase shift keying (DQPSK) modulation based on hard limiter...... Full Article

A Technique for Demapping Dual Carrier Modulated UWB OFDM Signals with Improved Performance

Conference: IEEE Vehicular Technology Conf., Sept. 2005
Abstract

In an OFDM based wireless communication system, the magnitude of CSI can be incorporated into the soft-decision decoding process to achieve better error correction performance. However...... Full Article

A Novel FFT Processor for OFDM UWB Systems

Conference: IEEE Asia Pacific Conf. on Circuits and Sys. (APCCAS), Dec. 2005
Abstract

We present a novel mixed-radix FFT architecture for OFDM UWB systems....... Full Article

A Modified Transposed Farrow Solution to Multipurpose Multirate Filtering in Software Defined Radio (SDR)

Conference: IEEE PIMRC, 2004, Barcelona, Spain
Abstract

...In this paper, an efficient modified transposed Farrow structure is implemented to achieve multi-purpose multirate filtering, e.g., SRC, matched filtering and timing adjustment...... Full Article

Transposed-Farrow-structure-based multirate filters for symbol timing synchronization in software defined radio (SDR)

Conference: IEEE VTC-fall, 2004. Los Angeles, USA
Abstract

In this paper, a symbol timing synchronizer employing a modified transposed-Farrow-structure (TFS), is investigated for the applications of SDRs...... Full Article

Design Techniques to combat Process, Temperature and Supply variations in Bluetooth RFIC

Conference: RFIC Symposium 2003
Abstract

A fully integrated Bluetooth RF transceiver with sensitivity up to -85 dBm with ±2 dB process variation has been achieved...... Full Article

Reduced-complexity Multipath Interference Cancellation Technique

Conference: IEEE VTC 2002-Fall
Abstract

A reduced-complexity multipath interference cancellation (MPIC) technique based on dynamic way for choosing the most significant interference items to be cancelled...... Full Article

A Simple and Efficient Hybrid Automatic Repeat Request (HARQ) Scheme for HIgh Speed Downlink Packet Access (HSDPA)

Conference: IEEE 3G Wireless 2002
Abstract

...In this scheme, redundancy versions for retransmissions are obtained by reordering the encoded bits of Turbo encoder...... Full Article

A new receiver architecture for joint carrier, channel, and data estimation for high-rate WPAN systems

Conference: VTC 2002-Fall
Abstract

In this paper, a novel receiver structure on joint carrier, channel and data estimation is proposed for WPAN systems...... Full Article

Achieve Low Power Design with Power Compiler

Conference: Synopsys Users Group (SNUG) annual conference, 2002
Abstract

Low power consumption is a vital feature for many kinds of IC chips...The power consumption can be further optimized with Power Compiler from Synopsys...... Full Article

 

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