Aftales med læreren
Usually written homework and Matlab programs/presentation to be handed in 1 month after completion of the course.
Evalueringsform:
Hjælpemidler:
Bedømmelsesform:
Obligatoriske forudsætninger:
Ønskelige forudsætninger:
Overordnede kursusmål:
Understand and apply analytical and semi-analytical methods for the performance evaluation of optical communication systems under non-Gaussian distributed noise impairments such as linear and non-linear phase noise, linear and non-linear crosstalk.
Læringsmål:
En studerende, der fuldt ud har opfyldt kursets mål, vil kunne:
derive analytical expressions for the statistics of the decision variable for an optical communication system under Gaussian distributed noise impairments based on moment generating functions
Derive analytical expressions for the statistics of the decision variable for an optical communication system under non-Gaussian distributed noise impairments based on moment generating functions
Apply analytical expressions for the computations of bit-error using saddle point approximations
Apply analytical expressions for the computations of bit-error rate using modified Chernov bounds
apply semi-analytical methods to the performance analysis of a communication system using conditional moment generating functions
analyze the results given by the saddle point approximation and Chernov bounds with respect to realistic measurements
understand the relation between the predictions of the analytical and semi-analytical methods and the noise impairments in practical communication physical layer implementations
knowledge of implementations of analytical and numerical methods to compute saddle point approximation based error probabilities
Kursusindhold:
The main topics are: - revision of the basis of optical communication systems with emphasis on optical phase modulated systems - semi-classical interpretation of optical detection - optical phase detection schemes - linear phase noise and Brownian motion - moment generation function theory - derivation of moment generation function for Poisson, Gaussian variables and its relation to decision variable of optical communication receivers - Karhunen-Loeve expansion for optical systems under optical Gaussian noise impairments - the saddle point approximation - use of the saddlet point approximation of computation of bit-error rates - Chernov bound approach for the computation of bit-error rates - analytical and semi-analytical method for saddle point and Chernov bound bit-error rate computations - case studies based on specific
Bemærkninger:
The course is conducted as a reading and discussion meeting with the teachers. Assignments will be handed out to each student and discussed every course meeting. The assignments will be based on the books: Principles of lightwave communications by G. Einarsson and Phase-Modulated Optical Communication Systems by Keang-Po Ho. The assignments will be chosen according to students' needs and interests.
