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Indoor positioning for visible light communication (VLC) has gained significant attentions recently with the popularity of light-emitting diodes (LEDs). In this paper, we consider a typical application of VLC by proposing a three-dimensional positioning scheme for a target terminal equipped with multiple photodiodes (PDs). Given the relative coordinates between the target terminal and receiving PDs...
Due to the various navigation signals and wide processing bandwidth, high resolution is required for the narrow band interference estimation in multi-system navigation receiver. The parametric spectral estimator especially the autoregressive (AR) model estimator is used to make high resolution compared to the conventional non-parametric spectral estimator. The properties of both methods are discussed...
This paper presents baseband receiver design for the third Generation Partnership Project (3GPP) Long Term Evolution (LTE) downlink systems under fast-fading channels. We aim to support 2×2 open-loop spatial multiplexing at high mobility up to 240 Km/hr with well-synchronized capability. The proposed receiver contains the functional blocks of mode detection, synchronization, channel tracking, inter-carrier...
Based on circular conjugate symmetry properties (CCSP) of discrete Fourier transform (DFT), a novel approach to nonorthogonal frequency division multiplexing (NOFDM) is presented. Different from other NOFDM systems, a simple estimation algorithm is exploited in the receiver instead of maximum likelihood sequence detection (MLSD) while the bit error rate (BER) of the proposed system is similar to those...
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