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Träfflista för sökning "LAR1:cth ;pers:(Karlsson Magnus 1967)"

Sökning: LAR1:cth > Karlsson Magnus 1967

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  • Agrell, Erik, 1965-, et al. (författare)
  • Satellite constellations: Towards the nonlinear channel capacity
  • 2012
  • Ingår i: 25th IEEE Photonics Conference, IPC 2012, Burlingame, 23 - 27 September 2012 [Invited]. - 978-145770731-5 ; s. 316-317
  • Konferensbidrag (refereegranskat)abstract
    • We present a family of adaptive constellations that, in a nonlinear optical fiber channel model, has a mutual information (modulation-constrained capacity) that does not decrease with signal power.
5.
  • Agrell, Erik, 1965-, et al. (författare)
  • WDM channel capacity and its dependence on multichannel adaptation models
  • 2013
  • Ingår i: 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference, OFC/NFOEC [Invited]. - 978-147990457-0
  • Konferensbidrag (refereegranskat)abstract
    • Optical multichannel systems are often characterized by the channel capacity of a single channel, assuming a certain adaptation behavior of the other channels. We investigate some common adaptation models, which lead to dramatically different capacities.
6.
  • Ahmad, Tauseef, 1986-, et al. (författare)
  • Methodology for Power-Aware Coherent Receiver Design
  • 2013
  • Ingår i: Advanced Photonics Congress (SPPCom) 2013.
  • Konferensbidrag (refereegranskat)abstract
    • We describe a methodology to design and evaluate DSP hardware for a coherent receiver. Important parameters that can be assessed include DSP power consumption and chip area.
7.
  • Alic, N., et al. (författare)
  • Benefits of Joint Statistics in MLSD-Equalized Transmission
  • 2009
  • Ingår i: IEEE Photonics Technology Letters. - 1041-1135. ; 21:8, s. 495-497
  • Tidskriftsartikel (refereegranskat)abstract
    • We experimentally investigate and quantify performance improvement, accounting for multiple bit intervals' joint statistics in filtered equalized on-off keying OC-192 fiber-optic links relying on Viterbi-algorithm-based sequence detection. We demonstrate that the penalty associated with narrow filtering can be alleviated for the most part with an appropriate detection approach.
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8.
  • Alic, N., et al. (författare)
  • Joint Statistics and MLSD in Filtered Incoherent High-Speed Fiber-Optic Communications
  • 2010
  • Ingår i: Journal of Lightwave Technology. - 0733-8724. ; 28:10, s. 1564-1572
  • Tidskriftsartikel (refereegranskat)abstract
    • In this paper, signal statistics and their utilization for detection in narrowly filtered equalized high-speed fiber-optic communications are investigated experimentally. Tradeoffs between log-likelihood metric applications and oversampling are covered in detail. It is, for the first time, demonstrated that performance loss in bandwidth-limited systems can be nearly fully recovered (to within 0.5 dB) by taking advantage of band-width-limitation-induced noise correlations and oversampling.
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  • Beygi, Lotfollah, 1977-, et al. (författare)
  • A Discrete-Time Model for Uncompensated Single-Channel Fiber-Optical Links
  • 2012
  • Ingår i: IEEE Transactions on Communications. - 0090-6778. ; 60:11, s. 3440-3450
  • Tidskriftsartikel (refereegranskat)abstract
    • An analytical discrete-time model is introduced for single-wavelength polarization multiplexed nonlinear fiber-optical channels based on the symmetrized split-step Fourier method (SSFM). According to this model, for high enough symbol rates, a fiber-optic link can be described as a linear dispersive channel with additive white Gaussian noise (AWGN) and a complex scaling. The variance of this AWGN noise and the attenuation are computed analytically as a function of input power and channel parameters. The results illustrate a cubic growth of the noise variance with input power. Moreover, the cross effect between the two polarizations and the interaction of amplifier noise and the transmitted signal due to the nonlinear Kerr effect are described. In particular, it is found that the channel noise variance in one polarization is affected twice as much by the transmitted power in that polarization than by the transmitted power in the orthogonal polarization. The effect of pulse shaping is also investigated through numerical simulations. Finally, it is shown that the analytical performance results based on the new model are in close agreement with numerical results obtained using the SSFM for a symbol rate of 28 Gbaud and above.
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tidskriftsartikel (109)
konferensbidrag (101)
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Författare/redaktör
Andrekson, Peter, 19 ... (132)
Agrell, Erik, 1965-, (67)
Johannisson, Pontus, ... (41)
Lundström, Carl, 198 ... (34)
Sunnerud, Henrik, 19 ... (27)
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Sjödin, Martin, 1983 ... (27)
Tong, Zhi, 1977-, (24)
Tipsuwannakul, Ekawi ... (21)
Szczerba, Krzysztof, ... (17)
Wymeersch, Henk, 197 ... (16)
Larsson, Anders, 195 ... (14)
Sköld, Mats, 1977-, (14)
Beygi, Lotfollah, 19 ... (14)
Kylemark, Per, 1976- ... (14)
Olsson, Samuel, 1984 ... (14)
Olsson, Bengt-Erik, ... (14)
Corcoran, Bill, 1983 ... (13)
Karout, Johnny, 1985 ... (13)
Westbergh, Petter, 1 ... (12)
Eriksson, Tobias, 19 ... (12)
McKinstrie, C. J. (11)
Radic, S. (10)
Li, Jianqiang, 1983- ... (10)
Alic, N. (8)
Westlund, Mathias, 1 ... (8)
Haglund, Åsa, 1976-, (7)
Gustavsson, Johan S. ... (7)
Tan, Ahmet Serdar, 1 ... (7)
Torounidis, Thomas, ... (6)
Malik, Rohit, (5)
Petersson, Mats, 197 ... (5)
Zhao, Hongxia, 1971- ... (5)
Bogris, Adonis, 0 (4)
Moro, S. (4)
Irukulapati, Naga Vi ... (3)
Hedekvist, Per Olof, ... (3)
Kahn, J. M. (3)
Ren, J. (3)
Lorences Riesgo, Abe ... (3)
Lu, Guo-Wei, 1976- (3)
Myslivets, E. (3)
Schiopu, Ionut Romeo (3)
Puttnam, Benjamin (3)
Li, J (2)
Mårtensson, Jonas, (2)
Oda, Shoichiro (2)
Kögel, Benjamin, 197 ... (2)
Makki, Behrooz, 1980 ... (2)
Wada, Naoya (2)
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