Journal of VLSI Signal Processing Systems
Chip-level channel equalization in WCDMA downlink
EURASIP Journal on Applied Signal Processing
EURASIP Journal on Applied Signal Processing
Efficient geographic routing over lossy links in wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
On the Transceiver Types of IR-UWB Systems at Sub-Nyquist Sampling Rates
Wireless Personal Communications: An International Journal
Design and Performance Evaluation of Space---time Receivers with Dynamically Adjustable Tap Delays
Wireless Personal Communications: An International Journal
Optimizing radio resource allocation in HSDPA using 2 group allocation
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Adaptive generalized rake reception in DS-CDMA systems
IEEE Transactions on Wireless Communications
Channel estimation using time-multiplexed pilots in HSUPA uplink
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Partial multiuser detection for CS-CDMA/CP over multipath channels and its comparison with DS-CDMA
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Partial multiuser detection for CS-CDMA/CP over multipath channels
IEEE Transactions on Communications
A generalized RAKE receiver for satellite WCDMA
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Performance of UWB communications with imperfect channel estimation
MILCOM'03 Proceedings of the 2003 IEEE conference on Military communications - Volume II
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Currently, a global third-generation cellular system based on code-division multiple-access (CDMA) is being developed with a wider bandwidth than existing second-generation systems. The wider bandwidth provides increased multipath resolution in a time-dispersive channel, leading to higher frequency-selectivity. A generalized RAKE receiver for interference suppression and multipath mitigation is proposed. The receiver exploits the fact that time dispersion significantly distorts the interference spectrum from each base station in the downlink of a wideband CDMA system. Compared to the conventional RAKE receiver, this generalized RAKE receiver may have more fingers and different combining weights. The weights are derived from a maximum likelihood formulation, modeling the intracell interference as colored Gaussian noise. This low-complexity detector is especially useful for systems with orthogonal downlink spreading codes, as orthogonality between own cell signals cannot be maintained in a frequency-selective channel. The performance of the proposed receiver is quantified via analysis and simulation for different dispersive channels, including Rayleigh fading channels. Gains on the order of 1-3.5 dB are achieved, depending on the dispersiveness of the channel, with only a modest increase in the number of fingers. For a wideband CDMA (WCDMA) system and a realistic mobile radio channel, this translates to capacity gains of the order of 100%