User selection and resource allocation algorithm with fairness in MISO-OFDMA

The problem of user selection and resource allocation for the downlink of wireless systems operating over a frequency-selective channel is investigated. It is assumed that the Base Station (BS) uses many antennas, whereas a single antenna is available to each user. A suboptimal, but efficient algori...

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Vydané v:IEEE communications letters Ročník 14; číslo 5; s. 411 - 413
Hlavní autori: Papoutsis, Vasileios D., Fraimis, Ioannis G., Kotsopoulos, Stavros A.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York, NY IEEE 01.05.2010
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:
Access methods and protocols, osi model
Algorithms
Antennas
Applied sciences
Array signal processing
Bandwidth
Base stations
Baseband
Beamforming
Channels
Computer simulation
Correlation
Downlink
Exact sciences and technology
Frequency division multiaccess
Information, signal and communications theory
MIMO
MISO
Multiplexing
OFDMA
proportional fairness
Radio spectrum management
Radiocommunications
Receiving antennas
Resource allocation
Resource management
Signal and communications theory
Stations
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Transmission and modulation (techniques and equipments)
Zero-Forcing
Fading channels
Spatial correlation
Base station
Wireless telecommunication
Resource allocation
Transmission protocol
Frequency division multiple access
Information rate
Equity
Downlink
Algorithm
Information transmission
Beam forming
Frequency selection
Algorithm performance
Simulation
Zero-Forcing
proportional fairness
Orthogonal frequency division multiplexing
Routing protocols
OFDMA
Resource management
MISO
Antenna
ISSN:1089-7798, 1558-2558
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Popis
Shrnutí:The problem of user selection and resource allocation for the downlink of wireless systems operating over a frequency-selective channel is investigated. It is assumed that the Base Station (BS) uses many antennas, whereas a single antenna is available to each user. A suboptimal, but efficient algorithm is devised that is based on Zero Forcing (ZF) beamforming and on spatial correlation. The algorithm maximizes the sum of the users' data rates subject to constraints on total available power and proportional fairness among users' data rates. The main feature of it is the proportionality among users' data rates which is guaranteed as it is shown by simulations.
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ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2010.05.100044