Orthogonal Frequency Division Multiplexing with Diversity for Future Wireless Systems

Orthogonal Frequency Division Multiplexing with Diversity for Future Wireless Systems

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The book examines several aspects of Orthogonal Frequency Division Multiplexing (OFDM) employing linear diversity techniques such as inter-carrier interference, bit error rate, peak to average power ...
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Gaussian and Hyperbolic Scattering Channels in Mobile OFDM Systems: A Preliminary Study

Pp. 395-435 (41)

Khoa N. Le

Abstract

Inter-carrier interference power PICI of Gaussian and hyperbolic scattering channels in a mobile orthogonal frequency division multiplexing (OFDM) system using their angle-of-arrival (AoA) probability density functions (pdf) is estimated. The PICI difference of the two channels is estimated and plotted as functions of ( , ζ), ( ,) and ( , fdTs). Experimental PICI difference for = 0, ζ = 0 and fdTs = 0.05 is obtained and plotted with the simulated results for comparison purposes. The ICI power is also plotted against (fdTs,), (fdTs,ζ), and (ζ,) for specific values of . Closed-form bit error rate (BER) expressions of OFDM communication systems in an added white Gaussian noise (AWGN) and Rayleigh fading environments using bipolar phase shift keying (BPSK), OFDM-BPSK, are derived.

Keywords:

Symmetric scattering channels, Gaussian distribution, hyperbolic distribution, cellular OFDM, Doppler spread

Affiliation:

School of Engineering, University of Western Sydney, Australia.