A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
Filters
MIMO Broadcast Scheduling with Limited Feedback
2007
IEEE Journal on Selected Areas in Communications
Preserved Fulltext
The second reduced feedback scheduling approach employs quantization for each user, in which only few bits of quantized SINR are fed back to the BS. ...
In the first approach, which we shall refer to as selected feedback scheduling, the users are selected based on their SINR compared to a predesigned threshold. ...
In contrast, here the quantization of SINR is employed for each user in a multiuser MIMO system. ...
doi:10.1109/jsac.2007.070918
fatcat:txw2tol4fjfqdib6oil5nllwla
Scheduling for Multiuser MIMO Downlink Channels with Ranking-Based Feedback
2008
EURASIP Journal on Advances in Signal Processing
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The performance of a system that performs user selection using ranking-based CSIT in the context of random opportunistic beamforming is analyzed, and we provide design guidelines on the number of required ...
We propose a novel type of CSIT representation for the purpose of user selection, coined as ranking-based feedback. ...
The system rate of a system employing ranking-based feedback metric for user selection is analyzed in Section 4. ...
doi:10.1155/2008/854120
fatcat:2f4rcyi4tber3fwrh7uruschxq
Opportunistic Feedback for Multiuser MIMO Systems With Linear Receivers
2007
IEEE Transactions on Communications
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2008; you can also visit the original URL.
The file type is application/pdf.
A novel multiuser scheduling and feedback strategy for the multiple-input multiple-output (MIMO) downlink is proposed in this paper. ...
In this system, the base station requires users' channel quality on each spatial channel for scheduling. An opportunistic feedback protocol is proposed to reduce the feedback requirements. ...
CONCLUSION In this paper, we proposed a scheduling and feedback strategy for the MIMO downlink. The base station uses per-antenna scheduling while the users employ linear receivers. ...
doi:10.1109/tcomm.2007.896013
fatcat:3r5jqixd6ne3fhrqpaxv56drzy
Antenna Diversity in Multiuser Data Networks
2004
IEEE Transactions on Communications
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2005; you can also visit the original URL.
The file type is application/pdf.
Jing Jiang (S'98) received the B.S. and M.S. degrees in radio engineering with honors from the ...
ASYMPTOTIC SUM RATE
A. Multiuser Channel Model We use a simple downlink model of a cellular packet data system, in which the base station transmitter sends packets to mobile terminals. ...
of diversity, termed multiuser diversity, is obtained in a data system. ...
doi:10.1109/tcomm.2004.823637
fatcat:xdzlto2guzd5tp5ka4wradyarm
Sum Rate Analysis of a Reduced Feedback OFDMA Downlink System Employing Joint Scheduling and Diversity
2012
IEEE Transactions on Signal Processing
Preserved Fulltext
The Internet Archive has a preservation copy of this work in our general collections.
The file type is application/pdf.
Note that this fulltext copy is not of the "primary" version of this work. The version it corresponds to is:
2011 pre-print arXiv:1106.0541v1 fatcat:4aj4pv7vcngtvchkznniwczuky
We consider joint scheduling and diversity to enhance the benefits of multiuser diversity in an system. ...
Assuming largest normalized scheduling and a general value for , we develop a unified framework to analyze the sum rate of the system for both the quantized and non-quantized feedback schemes. ...
CONCLUSION We considered joint scheduling and diversity to enhance the benefits of multiuser diversity in a multiuser OFDMA scheduling system. ...
doi:10.1109/tsp.2011.2173335
fatcat:5g4dmenqxng5dcgh23oq3xi74y
Performance of Orthogonal Beamforming for SDMA with Limited Feedback
[article]
2008
arXiv
pre-print
Preserved Fulltext
The Internet Archive has a preservation copy of this work in our general collections.
The file type is application/pdf.
Other Versions
PU2RC supports multiuser simultaneous transmission, enables limited feedback, and is capable of exploiting multiuser diversity. ...
The optimal multiuser transmission, known as dirty paper coding, is not directly realizable. ...
Both scheduling and beamforming in a SDMA system require channel state information (CSI) at the base station. ...
arXiv:cs/0606121v3
fatcat:t5q4age465b7xj227newnw2zgy
Multiuser Diversity - Multiplexing Tradeoff in MIMO Broadcast Channels with Limited Feedback
2006
2006 Fortieth Asilomar Conference on Signals, Systems and Computers
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
We consider joint scheduling and beamforming in a broadcast channel with multiple antennas at the transmitter and a single antenna at the mobile receiver. ...
We identify the tradeoff between multiuser diversity and spatial multiplexing gain given a limited amount of feedback bits. ...
In a system with joint downlink scheduling and beamforming with limited feedback, beamforming is performed based on quantized channel directions. ...
doi:10.1109/acssc.2006.354769
fatcat:7ucyavrlajahvhyhp4n6knl2cy
A Design Framework for Scalar Feedback in MIMO Broadcast Channels
2007
EURASIP Journal on Advances in Signal Processing
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
Recommended by Markus Rupp Joint linear beamforming and scheduling are performed in a system where limited feedback is present at the transmitter side. ...
In this paper, we present a design framework for scalar feedback in MIMO broadcast channels with limited feedback. ...
The design framework for scalar feedback here presented can be applied to any system in which codebooks are employed for channel quantization, known both to the base station and mobile users. ...
doi:10.1155/2008/574784
fatcat:wvrxofnp35euhm3cq5wr3mikuq
Fairness, power allocation, and CSI quantization in block fading multiuser systems
2013
EURASIP Journal on Wireless Communications and Networking
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
This paper studies the fairness, power allocation, and channel state information (CSI) quantization in multiuser systems utilizing multiple feedback bits per user. ...
For a given set of schedulers, we obtain the system throughput with different power allocation strategies and any combination of different fading distributions. ...
A scheduler is employed by the BS which, based on the criterion c, selects one of the receivers to be served at any time slot d . ...
doi:10.1186/1687-1499-2013-249
fatcat:z363byljrbazbon63pwgopteme
Performance Analysis for Physical Layer Security in Multi-Antenna Downlink Networks with Limited CSI Feedback
2013
IEEE Wireless Communications Letters
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
Note that this fulltext copy is not of the "primary" version of this work. The version it corresponds to is:
2013 pre-print arXiv:1306.3717v1 fatcat:4u53rduw4zaqbeevlr2un25l3e
This letter focuses on the quantitative analysis of the ergodic secrecy sum-rate in terms of feedback amount of the CSI from the legitimate users in multiuser multi-antenna downlink networks. ...
Channel state information (CSI) at the transmitter is of importance to the performance of physical layer security based on multi-antenna networks. ...
SYSTEM MODEL We consider a homogeneous multiuser multi-antenna downlink network employing physical layer security for secure communication, where a base station (BS) equipped with N t > 1 antennas communicates ...
doi:10.1109/wcl.2013.061913.130344
fatcat:x72ttb7nvjgqzauh4ftcyzon5e
Optimization of Cyclic-Delay Diversity Aided Frequency-Selective Scheduling in OFDMA Downlink Systems
2014
IEEE Transactions on Vehicular Technology
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
In the optimization of schedulinginformation feedback, a new channel-dependent feedback (CDF) method is proposed, where the feedback resource is allocated to users according to their frequency-selectivity ...
The optimized scheduler is shown to provide significant improvement in both system sum rate and user fairness over previous methods under fixed feedback overhead. ...
Scheduler In a frequency-selective scheduling, the improvement on system performance mainly comes from the scheduler at the BS that exploits the advantage of multiuser diversity based on the information ...
doi:10.1109/tvt.2013.2286179
fatcat:yblepaebujgxrmh7cngga4jdem
Corrections to "Unified Laguerre Polynomial-Series-Based Distribution of Small-Scale Fading Envelopes" [Oct 09 3988-3999]
2011
IEEE Transactions on Vehicular Technology
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
Other Versions
A Laguerre polynomial-series-based cdf formula for non-central chi-square distribution is also provided as a special case of our unified cdf result. ...
In this correspondence, we point out two typographical errors in Chai and Tjhung's paper and we offer the correct formula of the unified Laguerre polynomial-series-based cumulative distribution function ...
In this paper, we will consider a multiuser MIMO downlink system with both quantized CDI and CQI feedbacks but pursue another optimal strategy: minimizing the total transmit power under individual signal-to-interference-plus-noise-ratio ...
doi:10.1109/tvt.2010.2087368
fatcat:tyywlih7wzftnp4jntjkxt4tdi
Energy optimization in multiuser quantized feedback systems
2013
EURASIP Journal on Wireless Communications and Networking
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
This article explores the effects of quantization of feedback information on energy consumption in multiuser wireless communication systems. ...
In order to optimize the energy consumption of the system, the article concentrates on the amount of transmit energy, the additional energy due to quantization and the probability of power outage. ...
Based on the above, an optimization to find the best amount of feedback bits is required, in order to optimize both the system performance and the energy consumption. ...
doi:10.1186/1687-1499-2013-83
fatcat:ddbcyqv7yzhiddvua52k5sq6se
Feedback Reduction for Random Beamforming in Multiuser MIMO Broadcast Channel
[article]
2011
arXiv
pre-print
Preserved Fulltext
The Internet Archive has a preservation copy of this work in our general collections.
The file type is application/pdf.
For the multiuser multiple-input multiple-output (MIMO) downlink channel, the users feedback their channel state information (CSI) to help the base station (BS) schedule users and improve the system sum ...
In this paper, we propose a novel scheme to reduce the feedback load in a downlink orthogonal space division multiple access (SDMA) system with zero-forcing receivers by allowing the users to dynamically ...
A reduced feedback scheme was proposed in
the simulation, Scheme A and Scheme B use B Q,A and B Q,B bits, respectively, to optimally quantize their SNR values. ...
arXiv:1103.3885v1
fatcat:r2ari4ltd5cprpmfal6nehfgyy
Limited Feedback Designs for Machine-type Communications Exploiting User Cooperation
[article]
2019
arXiv
pre-print
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
Other Versions
Multiuser multiple-input multiple-output (MIMO) systems are a prime candidate for use in massive connection density in machine-type communication (MTC) networks. ...
In this paper, we propose a user cooperation-based limited feedback strategy to support high connection density in massive MTC networks. ...
SYSTEM MODEL AND BACKGROUND We briefly review the FDD-based multiuser MIMO systems. We first present the system model and then discuss antenna combining-based limited feedback. ...
arXiv:1805.06583v5
fatcat:qmjz63jjgfbkljhnm6ogayqaby
« Previous
Showing results 1 — 15 out of 228 results