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ofdm (15) 15
peak to average power ratio (9) 9
ofdm modulation (7) 7
engineering, electrical & electronic (6) 6
quadrature amplitude modulation (6) 6
bit error rate (5) 5
cost function (5) 5
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copper (4) 4
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constellation diagram (3) 3
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data communication (3) 3
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downlink (3) 3
filtering (3) 3
intelligent networks (3) 3
modulation (3) 3
robustness (3) 3
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table lookup (3) 3
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wireless communication (3) 3
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fading (2) 2
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frequency conversion (2) 2
helium (2) 2
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multicarrier communications (2) 2
multiple access interference (2) 2
noise levels (2) 2
orthogonal frequency division multiplexing (2) 2
peak-to-average ratio (2) 2
power amplifiers (2) 2
reduction (2) 2
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time-scale (2) 2
timing (2) 2
tone reservation (2) 2
transmitters (2) 2
wavelet detection (2) 2
wiring (2) 2
adaptive equalizers (1) 1
adaptive filters (1) 1
akustische signalverarbeitung (1) 1
algorithm (1) 1
allocations (1) 1
analysis and chemistry (1) 1
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IEEE Transactions on Signal Processing, ISSN 1053-587X, 09/1999, Volume 47, Issue 9, pp. 2579 - 2582
It is commonly known that the dyadic structure of wavelet expansions results in both time- and frequency-translation sensitivity of an input signal. We develop... 
Tiles | Cost function | Time frequency analysis | Particle measurements | Wavelet packets | Libraries | Time measurement | Discrete wavelet transforms | Signal representations | Testing | ENGINEERING, ELECTRICAL & ELECTRONIC | Signal processing | Usage | Analysis | Decomposition (Mathematics) | Wavelet | Frequency shift | Algorithms | Searching | Representations | Invariants
Journal Article
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology (IEEE Cat. No.03EX795), 2003, pp. 439 - 442
We present a new method for blind OFDM carrier-frequency off set (CFO) estimation in ISI channels. Like previous methods, this technique utilizes the signal... 
Wireless LAN | Intelligent networks | OFDM | Intersymbol interference | Bit error rate | Signal generators | Frequency estimation | Statistics | Digital audio broadcasting | Digital video broadcasting
Conference Proceeding
2008 IEEE Wireless Communications and Networking Conference, ISSN 1525-3511, 03/2008, pp. 1722 - 1727
This paper proposes a flexible, efficient approach to discrete rate and power allocation for OFDMA systems. We consider the weighted-sum-rate maximization... 
Fading | Quadrature amplitude modulation | OFDM | Scalability | Communications Society | H infinity control | Computational efficiency | Error correction | Resource management | Lagrangian functions
Conference Proceeding
2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, ISSN 2166-9570, 09/2008, pp. 1 - 5
This paper considers the discrete bit loading problem in OFDMA downlink systems where each user has a minimum-rate constaint. Whereas OFDMA loading problems... 
Wireless communication | Transmitters | OFDM | Downlink | Frequency conversion | Physical layer | Robustness | Resource management | Feeds | Lagrangian functions
Conference Proceeding
2008 34th European Conference on Optical Communication, ISSN 1550-381X, 09/2008, pp. 1 - 2
We consider active constellation extension to reduce the PAPR in CO-OFDM systems. We find that the nonlinearity threshold is improved by 1.5 dB at a reach of... 
Optical fiber polarization | Chromatic dispersion | OFDM | Bit error rate | Peak to average power ratio | Optical distortion | Optical fiber networks | Fiber nonlinear optics | Optical noise | Signal to noise ratio
Conference Proceeding
2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, ISSN 1948-3244, 07/2006, pp. 1 - 5
Orthogonal frequency-division multiple access (OFDMA) technology is being considered for uplink (UL) transmission in future mobile standards. While such... 
Intelligent networks | OFDM | Power amplifiers | Peak to average power ratio | Bandwidth | Multiple access interference | Downlink | Hardware | Batteries | Power engineering and energy
Conference Proceeding
Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005, ISSN 1058-6393, 2005, Volume 2005, pp. 1466 - 1470
Conference Proceeding
2003 4th IEEE Workshop on Signal Processing Advances in Wireless Communications - SPAWC 2003 (IEEE Cat. No.03EX689), 2003, Volume 2004-, pp. 600 - 604
We present a new method for OFDM time synchronization in dispersive channels. Like previous methods, this technique utilizes the signal correlation generated... 
Maximum likelihood estimation | Wireless LAN | AWGN | OFDM | Bit error rate | Interference | Signal generators | Timing | Statistics | Dispersion
Conference Proceeding
2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03), ISSN 1520-6149, 2003, Volume 4, pp. IV - 525
The high peak-to-average power ratio (PAR) in orthogonal frequency division multiplexing (OFDM) modulation systems can significantly limit performance. Methods... 
Energy consumption | Intelligent networks | Constellation diagram | Quadrature amplitude modulation | Filtering | Digital modulation | Peak to average power ratio | OFDM modulation | Digital filters | Quadrature phase shift keying
Conference Proceeding
2009 IEEE 70th Vehicular Technology Conference Fall, ISSN 1090-3038, 09/2009, pp. 1 - 5
We consider the multi-user discrete bit loading problem in OFDMA systems with objective and constraints in terms of ergodic rates and powers. This differs from... 
Constraint optimization | Wireless communication | Base stations | OFDM | Downlink | Cost function | Robustness | Helium | Statistics | Signal to noise ratio
Conference Proceeding
IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference, ISSN 1930-529X, 11/2008, pp. 1 - 5
We consider the discrete bit loading problem in OFDM systems with objective and constraints in terms of ergodic rates and powers. This differs from almost all... 
Constraint optimization | Wireless communication | Transmitters | OFDM | Cost function | Robustness | Helium | Feeds | Statistics | Signal to noise ratio
Conference Proceeding
Proceedings of the Tenth IEEE Workshop on Statistical Signal and Array Processing (Cat. No.00TH8496), 2000, pp. 53 - 57
Many algorithms for blind source separation (BSS) have been introduced in the past few years, most of which assume statistically stationary sources as well as... 
Fading | Blind equalizers | Polarization | Source separation | Microwave sensors | Microwave communication | Speech | Blind source separation | Statistics | Videoconference
Conference Proceeding
2008 Australian Communications Theory Workshop, 01/2008, pp. 113 - 118
In this paper, we present an active-set approach for peak-to-average power ratio (PAR) reduction via tone reservation in complex-baseband orthogonal frequency... 
Constraint optimization | Computer science | Wireless LAN | Quadrature amplitude modulation | OFDM | Peak to average power ratio | Iterative algorithms | Broadband communication | Australia | Power system modeling
Conference Proceeding
IEEE GLOBECOM 2007 - IEEE Global Telecommunications Conference, ISSN 1930-529X, 11/2007, pp. 3802 - 3806
Orthogonal frequency division multiple access (OFDMA) has been widely recognized as a promising solution for broadband wireless networks. Unfortunately, in... 
Degradation | Frequency division multiaccess | OFDM | Wireless networks | Intersymbol interference | Peak to average power ratio | Bandwidth | Multiple access interference | Frequency conversion | Australia
Conference Proceeding
Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005, ISSN 1058-6393, 2005, Volume 2005, pp. 1476 - 1479
Conference Proceeding
Proceedings of SPIE - The International Society for Optical Engineering, ISSN 0277-786X, 1997, Volume 3162, pp. 137 - 148
Conference Proceeding
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