An analytical approach to the calculation of EVM in clipped OFDM Signals

Igal Kotzer, Smadar Har-Nevo, Sasha Sodin, Simon Litsyn

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

One of the greatest drawbacks of OFDM communication systems is the high peak-to-average power ratio (PAPR) caused by various degrees of coherent summation in the signal generation using IFFT. Theoretical analysis of information capacities of such systems is difficult due to inaccuracies of models using mathematically unjustified assumptions about Gaussianity of distributions. The error-vector magnitude (EVM) of the signal after clipping is addressed. The EVM is calculated with no underlying model, and it is shown how it can be expressed as a power series of the number of tones. Thus it is concluded that although clipping should be minimized, the extent of minimization is channel and scenario dependent.

Original languageEnglish
Title of host publication2010 IEEE 26th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2010
Pages193-197
Number of pages5
DOIs
StatePublished - 2010
Event2010 IEEE 26th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2010 - Eilat, Israel
Duration: 17 Nov 201020 Nov 2010

Publication series

Name2010 IEEE 26th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2010

Conference

Conference2010 IEEE 26th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2010
Country/TerritoryIsrael
CityEilat
Period17/11/1020/11/10

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