Low Complexity Pre-Equalization Algorithms for Zero-Padded Block Transmission
نویسندگان
چکیده
منابع مشابه
Frequency-domain equalizers with zero restoration for zero-padded block transmission with high SNR
This paper focuses on the equalization of block transmissions with zero pad (ZP). If the channel impulse response length does not exceed the ZP length, it is possible to construct zero-forcing equalizers (ZFEs). Improved performance may be achieved using a minimummean squared error (MMSE) equalizer. However, these equalizers are computationally intensive when a time-domain implementation is use...
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The widespread application of OFDM for local area mobile wireless broadband systems is strongly motivated by the simple equalization it a ords. OFDM's bottleneck of channel-dependent performance was only recently addressed by replacing the cyclic pre x (CP) with trailing zeros (TZ). Such zero-padded OFDM transmissions enable FIR channel-irrespective symbol recovery which results in signi cant B...
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Orthogonal frequency division multiplex (OFDM) systems are particularly straightforward to understand in the frequency domain. The purpose of this paper is to draw attention to the fact that zero padded block transmissions also have a straightforward frequency domain interpretation. The advantages of this interpretation are illustrated by three additional results which further the understanding...
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We consider the class of linear precoded (LP) orthogonal frequency division multiplexing (OFDM) systems. We first show that single-carrier zero-padded transmissions, termed ZP-only, can be viewed as a special case of LP-OFDM. By resorting to the pair-wise error probability analysis, we establish the optimality of ZP-only among the LP-OFDM class in terms of its performance in random frequency-se...
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ژورنال
عنوان ژورنال: IEEE Transactions on Wireless Communications
سال: 2010
ISSN: 1536-1276
DOI: 10.1109/twc.2010.061710.090411