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Summary: ITERATIVE BLIND DATA DETECTION IN CONSTANT MODULUS OFDM SYSTEMS
Ahmed Abdul Quadeer1
, Tareq Y. Al-Naffouri1
and Maha Shadaydeh2
1
Electrical Engineering Dept., King Fahd University of Petroleum & Minerals, Saudi Arabia
Email: {aquadeer, naffouri}@kfupm.edu.sa
2
Electronics and Communication Engineering Dept., Damascus University, Syria
Email: shadayde@aloola.sy
ABSTRACT
In this paper, we consider blind data detection for OFDM
transmission over block fading channels. Specifically, we
show how constant modulus data of an OFDM symbol can
be blindly detected using output symbol and associated cyclic
prefix. Our approach relies on decomposing the OFDM chan-
nel into two subchannels (cyclic and linear) that share the
same input and are characterized by the same channel para-
meters. This fact enables us to estimate the channel parame-
ters from one subchannel and substitute the estimate into the
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