Search for dissertations about: "Digital compensation"
Showing result 1 - 5 of 92 swedish dissertations containing the words Digital compensation.
-
1. Digital Compensation Techniques for Transmitters inWireless Communications Networks
Abstract : Since they appeared, wireless technologies have deeply transformed our society. Today, wireless internet access and other wireless applications demandincreasingly more traffic. However, the continuous traffic increase can be unbearableand requires rethinking and redesigning the wireless technologies inmany different aspects. READ MORE
-
2. Towards the Limits of Nonlinearity Compensation for Fiber-Optic Channels
Abstract : The performance of long-haul coherent optical systems is fundamentally limited by fiber nonlinearity and its interplay with chromatic dispersion and noise. Due to nonlinearity, the signal propagating through the fiber interacts with itself and with the noise generated from the inline amplifiers. READ MORE
-
3. Digital Compensation Techniques for Power Amplifiers in Radio Transmitters
Abstract : Power amplifiers (PAs) are vital components in radio transmitters because they are responsible to amplify the low power communication signals to power levels suitable for transmission. Important requirements of PAs are high efficiency and linearity. Unfortunately, there is a tradeoff between efficiency and linearity. READ MORE
-
4. On Nonlinear Compensation Techniques for Coherent Fiber-Optical Channel
Abstract : Fiber-optical communication systems form the backbone of the internet, enabling global broadband data services. Over the past decades, the demand for high-speed communications has grown exponentially. One of the key techniques for the efficient use of existing bandwidth is the use of higher order modulation formats along with coherent detection. READ MORE
-
5. Polarization-Mode Disperion in Optical Fibers: Characterization, Transmission Impairments, and Compensation
Abstract : The topic of this thesis is polarization-mode dispersion (PMD) in optical fibers and its impact on high-speed data transmission. The work can be divided into three parts which deal with the major aspects of PMD: characterization, transmission properties and compensation. READ MORE