Abstract
Introduction
Contents
1 Observations
 1.1 FIR Background
 1.2 Deep Field Surveys
 1.3 Source Number Counts
 1.4 The k-Correction
 1.5 Redshift Estimation and Source Distribution
 1.6 Conclusion
2 Modeling the Universe
 2.1 A Model SED
 2.2 The FIR Spectrum
 2.3 The Luminosity Distribution
 2.4 Agreement with Observations
 2.5 Star Formation
 2.6 Spatial Distribution
 2.7 Simulated Maps
 2.8 Source Confusion
3 Conclusion and Prospect
A Cosmology and Cosmography
 A.1 General Relativity
 A.2 Distance Measures
B Details on the simulation program
 B.1 IDL
 B.2 Monte Carlo
 B.3 cosmology.pro
 B.4 utility.pro
 B.5 sim.pro
Bibliography