Title :
A constant energy constellation OFDM signal model with applications
Author :
Kotzer, Igal ; Har-Nevo, Smadar ; Sodin, Sasha ; Litsyn, Simon
Abstract :
A novel model for constant energy constellation (the data is drawn from equi-energy symbols) discrete time OFDM signal is presented. Based on this model the moments of the OFDM signal´s envelope maximum as well as the moments of the energy of the clipped portion of the signal are computed. It is also shown that the rate at which the expected value of the maximum scales with the length of the signal coincides with Halasz´ result. Simulation are presented, which show that this model gives much better results than the conventional Gaussian model in approximation of statistical properties of an OFDM signal.
Keywords :
Gaussian processes; OFDM modulation; approximation theory; signal processing; Gaussian model; OFDM signal envelope; constant energy constellation discrete time OFDM signal model; energy moments; signal clipped portion; statistical properties approximation; Computational modeling; Educational institutions; Peak to average power ratio; Random variables; Time domain analysis; Vectors;
Conference_Titel :
Electrical & Electronics Engineers in Israel (IEEEI), 2012 IEEE 27th Convention of
Conference_Location :
Eilat
Print_ISBN :
978-1-4673-4682-5
DOI :
10.1109/EEEI.2012.6376994
