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Interference Coordination for E-MBMS Transmissions in LTE-Advanced

Correia, A. ; Souto, N.S.

Intrnl. Journal of Digital Multimedia Broadcasting Vol. Volume 2010, Nº ID 689705, pp. 1 - 11, October, 2010.

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Interference coordination methods for Evolved-Multimedia Broadcast/Multicast Service (E-MBMS) in Long-Term Evolution
Advanced (LTE-A) are presented. In addition, we consider signal space diversity based on Rotation Matrices (RM) known to
provide good performance gains over uncorrelated Rayleigh fading channels. OFDM/OFDMA systems can make the use of RM
very attractive both for single andmultiple antenna transmissions. In this paper, OFDM/OFDMA signals based on LTE parameters
are combined with RM, MIMO, Turbo, or LDPC codes.We have considered different types of receivers, namely, we used an MMSE
(Minimum Mean Squared Error) equalizer and a Maximum Likelihood Soft Output criterion (MLSO). Frequency, signal, and
space diversity gains are evaluated for different spatial channel models (SCM) based on ITU multipath propagation channels.
Different adaptive frequency reuse and schedulers are considered to evaluate the E-MBMS spectral efficiency at the cell borders.