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In time division duplex coordinated multi-point transmission with joint processing (CoMP-JP) systems, the uplink-downlink channels are no longer reciprocal. Due to the difficulty of antenna calibration among the coordinated base stations (BSs), practical downlink channels differ from uplink channels by multiplicative ambiguity factors, which lead to severe performance degradation. In this paper, we...
An efficient method based on the concept of the variational optimality and the ensemble transform (ET) as well as the scaled unscented transform (SUT), therefore called the scaled unscented transform-based variational optimality filter (SVOF), is introduced in this work. Based on the SUT Kalman filter (SUKF) [1], the SVOF suggests a new correction for the ensemble mean and covariance estimation, which...
In this paper, a novel two-stage coexistence detection scheme for 60-GHz millimeter-wave (mmW) WLAN/WPAN is proposed. Specifically, orthogonal frequency division multiplexing (OFDM) is employed as the transmission mode. The energy detector (ED) is used at the first stage to perform coarse scan. If required, the arithmetic mean to geometric mean detector (AGD) is invoked at the second stage to refine...
Single-carrier frequency domain equalization (SC-FDE) has been standardized as an alternative of orthogonal frequency division multiplexing (OFDM) in IEEE 802.11ad and 802.15.3c. In addition, with the use of low density parity-check (LDPC) codes, multi-Giga bits transmission can be supported in 60-GHz millimeter-wave (mmW) WLAN/WPAN with desired decoding complexity. In this paper, we present and evaluate...
A new time-varying parameter-based model for target tracking in two dimensions is developed. The target maneuvers are modeled by incorporating tangential- and normal-tack acceleration inputs, the former is characterized by a time-correlated stochastic process and the latter is parameterized by heading-rate, therefore unlike the usual evolution equation with fixed-structure, the proposed model describes...
In practical target tracking, a number of improved measurement conversion techniques have been developed and proofed to be superior to the standard (extended) Kalman filtering (KF) in Cartesian coordinates. The framework of conversion technique exhibits fundamental pros and cons and therefore associated with different performance as pointed out in. In this paper, we show that, based on the Fisher...
To deal with the multi-path delay spread in non- line-of-sight (NLOS) environments, single-carrier frequency- domain equalization (SC-FDE), a.k.a., single-carrier block transmission (SCBT), is thought to be an effective alternative of orthogonal frequency division multiplexing (OFDM). On the other hand, the low-density parity-check (LDPC) coding is considered as the high-performance channel coding...
This paper investigates the problem of automatically choosing the number of samples for the particle filter (PF) given a certain confidence interval, and a scheme for an adaptive sample size PF (APF) is proposed. It is well known that a conventional PF uses a fixed number of particles which in practice is selected manually by trial-and-error. The automatic selection of sample size for a given task...
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