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http://dx.doi.org/10.6109/jicce.2015.13.2.069

Analysis of Optimal Sounding Signal Design in OFDM Systems  

Jo, Junho (Spectrum Strategy Department, KT Corp.)
Oh, Janghoon (Department of Electronics and Computer Engineering, Hanyang University)
Choi, Seyeong (Department of Information & Communication Engineering, Wonkwang University)
Publication Information
Journal of information and communication convergence engineering / v.13, no.2, 2015 , pp. 69-73 More about this Journal
Abstract
We focus on a sounding signal design for single-input single-output orthogonal frequency division multiplexing (SISO-OFDM) systems. We show that the frequency spectrum of an optimum sounding signal has a constant magnitude across the frequency band for the cases with or without Doppler effects. Simulation results show that the designed optimum sounding signal outperforms random sounding signals and that the performance of a maximal-length shift register sequence is indistinguishable from that of the optimum sounding signal.
Keywords
MMSE; OFDM; Pilot signal; Sounding signal;
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