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Adaptive multirate CDMA for uplink throughput maximization
2003
IEEE Transactions on Wireless Communications
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We determine the optimal adaptive rate and power control strategies to maximize the total throughput in a multirate code-division multiple-access system. ...
Index Terms-Adaptive systems, code division multiple access (CDMA), multiaccess communication, power control, throughput. ...
with adaptive multirate CDMA. ...
doi:10.1109/twc.2003.808958
fatcat:lcoz7ounvra5rkis7xxzeuuwge
>tex<$Q$>/tex<-Learning-Based Multirate Transmission Control Scheme for RRM in Multimedia WCDMA Systems
2004
IEEE Transactions on Vehicular Technology
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Index Terms-Code-division multiple access (CDMA) communication system, multirate transmission, -learning, radio resource management. ...
Simulation results show that the Q-MRTC for a multimedia WCDMA system can achieve higher system throughput by an amount of 80% and better users' satisfaction than the interference-based MRTC scheme, while ...
ACKNOWLEDGMENT The authors would like to thank the anonymous reviewers for their comments, which improved the correctness and presentation of the paper. ...
doi:10.1109/tvt.2003.822330
fatcat:rrr2vz43xvaopog3aoaqmog3dy
Fairness in Radio Resource Management for Wireless Networks
2009
EURASIP Journal on Wireless Communications and Networking
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Radio resource management (RRM) techniques such as admission control, scheduling, subcarrier allocation, channel assignment, power allocation, and rate control are essential for maximizing the resource ...
In many cases, the performance metrics (e.g., overall throughput) can be optimized if opportunistic algorithms are employed. ...
The second paper titled "Joint throughput maximization and fair uplink transmission scheduling in CDMA systems" by C. Li and S. ...
doi:10.1155/2009/642878
fatcat:oscdq6iirnfplopphodljibzrm
Software-defined-radio-assisted adaptive broadband frequency hopping multicarrier DS-CDMA
2002
IEEE Communications Magazine
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by the employment of software-defined radios (SDR) and with the advent of efficient adaptive baseband algorithms. ...
Against the backdrop of the explosive expansion of the Internet and the continued dramatic increase in demand for high-speed multimedia wireless services, there is an urgent demand for flexible, bandwidth-efficient ...
The corresponding frequency bands for the UMTS-FDD W-CDMA system are 1850-1910 MHz (uplink) and 1930-1990 MHz (downlink) in North America, while 1920-1980 MHz (uplink) and 2110-2170 MHz (downlink) in Europe ...
doi:10.1109/35.989783
fatcat:bv2tses7sjbk5lh2plvrika4xa
Dynamic Rate Adaptation and Integrated Rate and Error Control in Cellular WCDMA Networks
2004
IEEE Transactions on Wireless Communications
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We demonstrate that the dynamic rate adaptation problem under constrained SINR can be mapped into the radio link level throughput maximization problem with integrated rate and error control. ...
, are proposed for uplink packet data transmission in cellular variable spreading factor wide-band code division multiple access (WCDMA) networks. ...
Similar results were obtained in [9] , where the throughput maximization problem for CDMA uplinks was formulated as an optimization problem in terms of the spreading gains and transmit power of the users ...
doi:10.1109/twc.2003.819039
fatcat:hqm25a6kyvhsxnl3pmxrfwprvi
Burst-by-burst adaptive multiuser detection cdma: a framework for existing and future wireless standards
2003
Proceedings of the IEEE
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Furthermore, the BbB-adaptive variable spreading factor-based schemes considered were outperformed by the adaptive quadrature amplitude modulation-based JD-CDMA schemes investigated. ...
For example, at a channel signal-to-noise ratio per bit value of E b =N0 = 14 dB the latter scheme provides an average bit per symbol (BPS) throughput of 3.39, while the former provides an average BPS ...
Fig. 18 portrays the associated BER and throughput comparisons for the adaptive VSF PIC-, SIC-, and JD-CDMA schemes using 4-QAM. ...
doi:10.1109/jproc.2002.808152
fatcat:y4ss5znvcnfshg5lnx2fx6hupi
Opportunistic Scheduling with QoS Constraints for Multiclass Services HSUPA System
2007
ETRI Journal
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The MHOS algorithm selects the optimal subset of users for transmission at each time slot to maximize system throughput, while guaranteeing the different constraints. ...
QoS constraints for realtime multimedia users in multiclass service highspeed uplink packet access (HSUPA) systems. ...
In [6] , the authors determine the optimal adaptive rate and power control strategies to maximize the total throughput in a multirate Opportunistic Scheduling with QoS Constraints for Multiclass Services ...
doi:10.4218/etrij.07.0106.0187
fatcat:5spoxozn3zhg5j7pez32hxgep4
Downlink joint rate and power allocation in cellular multirate WCDMA systems
2003
IEEE Transactions on Wireless Communications
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Index Terms-Dynamic rate and power adaptation, multicell multirate wideband code-division multiple-access (WCDMA) systems, radio link level throughput fairness. ...
adaptation scheme with a moderate loss in total throughput. ...
ACKNOWLEDGMENT The authors wish to thank all the reviewers for their comments and suggestions which greatly improved the presentation of this work. ...
doi:10.1109/twc.2002.806366
fatcat:u36hdjn3wjchxabsmvjytf4cpe
Dynamic Rate and Power Adaptation for Provisioning Class-Based QoS in Cellular Multirate WCDMA Systems
2004
IEEE Transactions on Wireless Communications
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Index Terms-Dynamic rate and power adaptation, multicell multirate wideband code-division multiple-access (WCDMA) systems, class-based quality of service (QoS), priority-based rate adaptation. ...
Two schemes, namely, near-optimal and suboptimal schemes, are proposed for implementation-friendly dynamic rate and power adaptation. ...
In [8] , the throughput maximization problem for CDMA uplinks was formulated as an optimization problem in terms of the spreading gains and the transmit powers of the users. ...
doi:10.1109/twc.2004.833492
fatcat:lchouz3orfetfne3qx2fptf65i
Block precoding for MUI/ISI-resilient generalized multicarrier CDMA with multirate capabilities
2001
IEEE Transactions on Communications
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transceivers for asynchronous or quasi-synchronous CDMA transmissions through multipath channels. ...
Performance of GMC-CDMA system in UMTS channels is also simulated and compared with existing multirate schemes. ...
Such dynamic frequency allocation has the potential of maximizing the system throughput and constitutes an interesting future research direction. ...
doi:10.1109/26.966078
fatcat:7zvv3vyrzzethaoxrjdpk4hy2a
2005 Index
2005
IEEE Transactions on Vehicular Technology
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., fairness constraints, downlink of CDMA data nets. Lim, E., + , T-VT Jan 05 328-337 WCDMA FDD uplink, RLS-based adaptive beamforming scheme, RAKE receiver design. ...
., + , T-VT Jan 05 91-99
WCDMA FDD uplink, RLS-based adaptive beamforming scheme, RAKE
receiver design. ...
., + , T-VT Mar 05 639-651 bandwidth gain, various Timer_CU of AAL2 for voice traffic MUX. Hyun-Jin Lee, + , T-VT Jul 05 1438-1446 CDMA cellular nets., pilot interf. cancellation technol. ...
doi:10.1109/tvt.2005.863647
fatcat:7ftwl4fyt5adfatoufxaoldhai
New direction of broadband wireless technology
2007
Wireless Communications and Mobile Computing
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However, for the uplink (mobile-to-base) applications, SC transmission is more appropriate since it has less peak power. ...
CDMA is very flexible; special cases of DS-CDMA and MC-CDMA with the spreading factor SF = 1 are non-spread SC transmission and OFDM, respectively. ...
How to combine MIMO with adaptive resource allocation and scheduling? Multiuser MIMO is another interesting technique for the uplink enhancement. ...
doi:10.1002/wcm.507
fatcat:6frt3jwrmbbpbj4cfoyptd4e5y
Joint downlink beamforming, power control, and data rate allocation for DS-CDMA mobile radio with multimedia services
2000
2000 IEEE International Conference on Multimedia and Expo. ICME2000. Proceedings. Latest Advances in the Fast Changing World of Multimedia (Cat. No.00TH8532)
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In this paper, we p m e n t a joint d o d i n k beamforming, power control and mte allocation technique suitable for DS-CDMA systems with multimedia services. ...
Power control and rate allocation are two fundamental issues for improving the spectrum eficiency of downlink transmission for wireless multimedia communications. ...
Jeon, "CDMA/TDD system for wireless multimedia services with traffic unbalance between uplink and downlink )II IEEE JSAC, Oct. 1998 , pp.1437 -1449 . 1999 , pp.17-21. ~01.17, No.5, pp.978-989. 1999 ...
doi:10.1109/icme.2000.871041
dblp:conf/icmcs/LiangCL00
fatcat:qnvf5ejkvfcvpbftsjl7zajkia
Multiple Access Network Optimization Aspects via Swarm Search Algorithms
[chapter]
2011
Search Algorithms and Applications
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1.Introduction In the current telecommunication scenario, companies must deal with spectrum scarcity, power consumption issues, increasing throughput demand, and quality of service (QoS) requirements, ...
The capacity of a DS/CDMA system in multipath channels is limited mainly by the MAI, self-interference (SI), near-far effect (NFR) and fading. ...
Throughput maximization for multirate systems under power constraint The aiming herein is to incorporate multirate criterion with throughput maximization for users with different QoS, while the power consumption ...
doi:10.5772/15663
fatcat:rliybp6k7bdg7lnqvyia636754
Uplink Power Control in QoS-aware Multi-Service CDMA Wireless Networks
2009
Journal of Communications
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Altman, “CDMA
uplink power control as a noncooperative game,” Wireless
unique value Pˆi that maximizes ...
It is noted that
in [21] a utility-based framework for reflecting real-rime We examine the uplink of a single cell time-slotted
users’ degree of satisfaction in accordance to their CDMA ...
doi:10.4304/jcm.4.9.654-668
fatcat:jr434ogvizhedfyq5kxghnosgq
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