Results 91 to 100 of about 14,564 (231)

Adaptive redundant residue number system coded multicarrier modulation

, 2000
The novel class of nonbinary maximum minimum distance redundant residue number system (RRNS) codes is invoked in the context of adaptively RRNS coded, symbol-by-symbol adaptive multicarrier modulation, in order to combat the effects of frequency ...
Liew, T.H., Keller, T., Hanzo, L.
core   +1 more source

Recital on Multicarrier Communications: Space-Time Coded versus Adaptive OFDM/MC-CDMA

, 2004
This overview portrays the evolution of multi-carrier systems from their conception and demonstrates that they are capable of supporting the requirements of future wireless systems of the next generation.
Munster, M, Munster, M., Yang, L-L., Hanzo, L., Yang, L-L, Choi, B.J., Choi, B-J.   +6 more
core  

Joint channel estimation and multi-user detection for SDMA/OFDM based on dual repeated weighted boosting search [PDF]

, 2011
A joint channel estimation and Multi-User Detection (MUD) scheme is proposed for multi-user Multiple-Input Multiple-Output (MIMO) Space Division Multiple Access / Orthogonal Frequency-Division Multiplexing (SDMA/OFDM) systems.
Sheng Chen, Xiaomin Mu, Chen, Sheng, Jiankang Zhang, Mu, Xiaomin, Student Member, Hanzo, Lajos, Lajos Hanzo, Zhang, Jiankang   +8 more
core   +1 more source

Adaptive Modulation Techniques for Duplex OFDM Transmission

, 2000
The design tradeoffs of turbo-coded burst-by-burst adaptive orthogonal frequency division multiplex (OFDM) wide-band transceivers are analyzed. We demonstrate that upon aiming for a higher throughput a higher proportion of low-quality OFDM subcarriers ...
Keller, T., Hanzo, L.
core  

Parallel-Interference-Cancellation-Assisted Decision-Directed Channel Estimation for OFDM Systems using Multiple Transmit Antennas

, 2005
The number of transmit antennas that can be employed in the context of least-squares (LS) channel estimation contrived for orthogonal frequency division multiplexing (OFDM) systems employing multiple transmit antennas is limited by the ratio of the ...
M. Munster, Munster, M., L. Hanzo, Hanzo, L.   +3 more
core   +1 more source

Carrier Frequency Offset Effects on OFDM System over Rayleigh Fading Channel

Journal of Electrical, Electronics and Informatics, 2019
Orthogonal Frequency Division Multiplexing (OFDM) system showed the use of Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) to perform the baseband modulation and demodulation.
N. M. A. E. Dewi Wirastuti, I.G.A.K. Diafari Djuni Hartawan, I Made Arsa Suyadnya, Duman Care Khrisne   +3 more
doaj   +1 more source

MMSE Channel Prediction for Symbol-by-Symbol Adaptive OFDM Systems

, 2000
Subband Adaptive Orthogonal Frequency Division Multiplexing (OFDM) constitutes an effective method of compensating for the frequency selective fading incurred by mobile receivers.
Münster, M., Hanzo, L.
core  

A Turbo-Coded Burst-by-Burst Adaptive Wide-Band Speech Transceiver

, 2000
Turbo-coded burst-by-burst adaptive orthogonal frequency division multiplex (AOFDM) wide-band speech transceivers are proposed. A constant throughput adaptive OFDM transceiver was designed and benchmarked against a time-variant rate scheme.
Münster, M., Keller, T., Hanzo, L.
core  

Pengaruh Frequency Selectivity Pada Orthogonal Frequency Division Multiplexing (OFDM) [PDF]

, 2013
Orthogonal Frequency Division Multiplexing (OFDM) adalah suatu nama khusus dari multicarrier, dimana suatu aliran data berkecepatan tinggi ditransmisikan melalui sejumlah subcarrier berkecepatan rendah.
Tazkia, Fahima Ulfi, Mustofa, Ali, Purnomowati, Endah Budi   +2 more
core   +1 more source

Multicarrier Multiplexing Method for Very Wide Bandwidth Transmission

EURASIP Journal on Wireless Communications and Networking, 2006
The multicarrier orthogonal code division multiplexing (MC-OCDM) introduced here has been designed for very wide bandwidth (VWB) point-to-point and point-to-multipoint transmission.
doaj