Results 41 to 50 of about 824,618 (117)

Upper-Bound Performance of a Wide-Band Adaptive Modem

, 1999
Adaptive modulation is applied in conjunction with a decision-feedback equalizer (DFE) in order to mitigate the effects of the slowly varying wide-band multipath Rayleigh fading channel in a noise-limited environment.
Wong, C.H., Hanzo, L.
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Soft-decision Star-QAM aided BICM-ID

, 2011
Differentially detected non-coherent Star Quadrature Amplitude Modulation (Star-QAM) is deal for low-complexity wireless communications, since it dispenses with high-complexity channel estimation. We conceive soft-decision based demodulation for 16-level
Liang, Dandan, Ng, Soon Xin, Hanzo, Lajos   +2 more
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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

Dynamic Channel Allocation Techniques Using Adaptive Modulation and Adaptive Antennas

, 2001
This contribution studies the impact of adaptive quadrature amplitude modulation (AQAM) on network performance when applied to a cellular network, using adaptive antennas in conjunction with both fixed channel allocation (FCA) and locally distributed ...
Blogh, J.S., Cherriman, P.J., Hanzo, L.
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AMPLITUDE MODULATION

, 2022
U ovom radu objasnit ćemo što je to modulacija i demodulacija, te njezine primjene. U 2. poglavlju ćemo pisati detaljnije o modulaciji i za šta se koristi, te koje su prednosti modulacije. U 3.
Galešić, Matej
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Detect-and-forward relaying aided cooperative spatial modulation for wireless networks

, 2013
A novel detect-and-forward (DeF) relaying aided cooperative SM scheme is proposed, which is capable of striking a flexible tradeoff in terms of the achievable bit error ratio (BER), complexity and unequal error protection (UEP).
Yang, Ping, Li, Shaoqian, Xiao, Yue, El-Hajjar, Mohammed, Zhang, Bo, Dong, Binhong, Hanzo, Lajos   +6 more
core   +1 more source

IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 51, NO. 12, DECEMBER 2003 3263 Adaptive Minimum Symbol-Error Rate Equalization

, 2003
We propose the adaptive minimum symbol-error rate algorithm, which is a low-complexity technique for adapting the coefficients of a linear equalizer in systems using pulse-amplitude or quadrature-amplitude modulation.
Chen-chu Yeh, For Quadrature-Amplitude Modulation, John R. Barry   +2 more
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Signal regeneration techniques for advanced modulation formats

We review recent results on all-optical regeneration of phase encoded signals based on phase sensitive amplification achieved by avoiding phase-to-amplitude conversion in order to facilitate the regeneration of amplitude/phase encoded (QAM ...
Horak, P., Hesketh, G., Parmigiani, F., Petropoulos, P., Richardson, D.J., Bottrill, K.   +5 more
core   +1 more source

Analysis And Synthesis Of Amplitude

, 2007
Previous work [1] addressed analysis and synthesis of the FM and aspiration noise components of pathological voices. The current study refines the previous analysis and adds amplitude modulation to model non-periodic components.
Modulation Components In
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Single- and Multi-carrier Quadrature Amplitude Modulation: Principles and Applications for Personal Communications, WATM and Broadcasting: 2nd

, 2000
Single- and Multi-carrier Quadrature Amplitude Modulation Principles and Applications for Personal Communications, WLANs and Broadcasting L. Hanzo Department of Electronics and Computer Science, University of Southampton, UK W.
Webb, W.T., Keller, T., Hanzo, L.
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