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We investigate non-coherent multi-input multi-output (MIMO) signal processing which requires no channel state information (CSI) at either the transmitter or the receiver. With non-coherent codes on Grassmann manifold, a receiver employing generalized likelihood ratio test (GLRT) algorithm offers the maximum-likelihood performance even without CSI. However, the conventional GLRT suffers from a severe...
In multiple-input multiple-output systems, an ordered successive interference canceller, termed the vertical Bell laboratories layered space-time (V-BLAST) algorithm, offers good performance. This letter presents a low-complexity V-BLAST scheme suited for parallel implementation. The proposed scheme, using a greedy ordering, can achieve a performance comparable to that of V-BLAST with optimum ordering,...
In this paper, we propose a low-complexity equalizer whose performance approaches that of the optimum maximum-likelihood (ML) estimator, in ultra-wideband (UWB) multiple- input multiple-output (MIMO) channels. Although the ML estimation offers the excellent performance, it is generally of high complexity due to the large size of searching space. Through a theoretical search-space analysis, we reveal...
In this paper, we present a design method of physical layer network coding for reliable two-way relaying in frequency-selective fading channels. We consider a two-stage protocol: At the first stage, two terminals simultaneously transmit data packets towards a relaying node. The relay maps the received signal into a discrete constellation using appropriate network coding, after which it is broadcasted...
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