3G Wireless Communications and Beyond
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Citation: EURASIP Journal on Advances in Signal Processing 2002 2002:973145
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On Bandwidth Efficient Modulation for High-Data-Rate Wireless LAN Systems
We address the problem of high-data-rate orthogonal frequency division multiplexed (OFDM) systems under restrictive bandwidth constraints. Based on recent theoretic results, multiple-input multiple-output (MIM...
Citation: EURASIP Journal on Advances in Signal Processing 2002 2002:809823 -
EM-Based Multiuser Detection in Fast Fading Multipath Environments
We address the problem of multiuser detection in fast fading multipath environments for DS-CDMA systems. In fast fading scenarios, temporal variations of the channel cause significant performance degradation e...
Citation: EURASIP Journal on Advances in Signal Processing 2002 2002:797523 -
An Adaptive Channel Estimation Algorithm Using Time-Frequency Polynomial Model for OFDM with Fading Multipath Channels
Orthogonal frequency division multiplexing (OFDM) is an effective technique for the future 3G communications because of its great immunity to impulse noise and intersymbol interference. The channel estimation ...
Citation: EURASIP Journal on Advances in Signal Processing 2002 2002:704508 -
Joint Transmitter-Receiver Optimization in the Downlink CDMA Systems
To maximize the downlink code-division multiple access (CDMA) system capacity, we propose to minimize the total transmitted power of the system subject to users′ signal-to-interference ratio (SIR) requirements...
Citation: EURASIP Journal on Advances in Signal Processing 2002 2002:498216 -
Reduced-Rank Chip-Level MMSE Equalization for the 3G CDMA Forward Link with Code-Multiplexed Pilot
This paper deals with synchronous direct-sequence code-division multiple access (CDMA) transmission using orthogonal channel codes in frequency selective multipath, motivated by the forward link in 3G CDMA sys...
Citation: EURASIP Journal on Advances in Signal Processing 2002 2002:491578 -
Dual Switched Predictive DIR MLSD Receiver for Dynamic Channels
A linear prefilter can be used to reduce the required complexity of a maximum likelihood sequence detector Viterbi algorithm (MLSD-VA) by shortening the overall channel and prefilter impulse response in dynami...
Citation: EURASIP Journal on Advances in Signal Processing 2002 2002:373925 -
Spatial Block Codes Based on Unitary Transformations Derived from Orthonormal Polynomial Sets
Recent work in the development of diversity transformations for wireless systems has produced a theoretical framework for space-time block codes. Such codes are beneficial in that they may be easily concatenat...
Citation: EURASIP Journal on Advances in Signal Processing 2002 2002:214845 -
Performance of Reverse-Link Synchronous DS-CDMA System on a Frequency-Selective Multipath Fading Channel with Imperfect Power Control
We analyze the performance for reverse-link synchronous DS-CDMA system in a frequency-selective Rayleigh fading channel with an imperfect power control scheme. The performance degradation due to power control ...
Citation: EURASIP Journal on Advances in Signal Processing 2002 2002:181597 -
Chip-Level Channel Equalization in WCDMA Downlink
The most important third generation (3G) cellular communications standard is based on wideband CDMA (WCDMA). Receivers based on TDMA style channel equalization at the chip level have been proposed for a WCDMA ...
Citation: EURASIP Journal on Advances in Signal Processing 2002 2002:180318