Sökning: "Capacity bound"

Visar resultat 1 - 5 av 147 avhandlingar innehållade orden Capacity bound.

1. 1. Coding Schemes for Relay Networks

   Författare :Majid Nasiri Khormuji; Mikael Skoglund; Gerhard Kramer; KTH; []
   Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Relay networks; capacity; decode-and-forward; amplify-andforward; compress-and-forward; nonlinear relaying; noisy network coding; hybrid relaying; Telecommunication; Telekommunikation;

   Sammanfattning : Cooperative communications by pooling available resources—for example, power and bandwidth—across the network, is a distributed solution for providing robust wireless transmission. Motivated by contemporary applications in multi-hop transmission and ad hoc networks, the classical three-node relay channel (RC) consisting of a source–destination pair and a relay node has received a renewed attention. LÄS MER

3. 2. The Information-Theoretic Cost of Learning Fading Channels

   Författare :Wei Yang; Chalmers University of Technology; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multiple antennas; finite blocklength; outage capacity; block-fading channel; Shannon capacity; quasi-static fading;

   Sammanfattning : Recent results in communication theory suggest that significant throughput gains in wireless fading networks can be achieved by exploiting network coordination (e.g., CoMP, network MIMO, and interference alignment), provided that each node in the network has perfect channel knowledge. LÄS MER

4. 3. MIMO Channels - Measurements and Analysis

   Författare :Peter Almers; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Telecommunication engineering; Telekommunikationsteknik; Electrical engineering; Elektroteknik; Signal processing; Teknik; Capacity; Technological sciences; Spatial-multiplexing; Diversity; Measurements; MIMO; Wireless; Communications;

   Sammanfattning : Providing increased transmission speed, quality and an efficient spectrum utilization is crucial for high speed wireless services of today and the future. This thesis is a collection of papers that address an important step in that direction -- the utilization of the spatial domain of the wireless channel. LÄS MER

5. 4. Influence of Fiber Nonlinearity on the Capacity of Optical Channel Models

   Författare :Kamran Keykhosravi; Chalmers University of Technology; []
   Nyckelord :NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; nonlinearity mitigation; Fiber optics; information theory; channel capacity; perturbation; achievable rate;

   Sammanfattning : The majority of today’s global Internet traffic is conveyed through optical fibers. The ever-increasing data demands has pushed the optical systems to evolve from using regenerators and direct-direction receivers to a coherent multi-wavelength network. LÄS MER

7. 5. Capacity Analysis and Receiver Design in the Presence of Fiber Nonlinearity

   Författare :Kamran Keykhosravi; Chalmers University of Technology; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; perturbation theory.; Achievable rate; nonlinearity mitigation; noncoherent optics; dispersion compensation; fiber optics; channel capacity; information theory;

   Sammanfattning : The majority of today's global Internet traffic is conveyed through optical fibers. The ever-increasing data demands have pushed the optical systems to evolve from using regenerators and direct-direction receivers to a coherent multi-wavelength network. LÄS MER