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An H-infinity (H-inf) channel estimation algorithm is proposed for estimating the channels in MIMO-OFDM systems in the presence of carrier frequency offset (CFO). The goal is to contribute to an algorithm with low complexity, good estimate performance and better suppression to CFO. For this purpose, the H-inf with simplified objective function is first developed, and then, its computational load is...
Object localization defines an important application for wireless sensor networks. In this paper, we present a hybrid of dual-modal mobile localization system to support the object tracking in indoor environment. In order to decrease the system cost and simplify the sensor deployment, we implement the localization by the received radio signal strength approach and the unscented Kalman filter (SPKF)...
A novel diversity-multiplexing decision switched algorithm is proposed for multiple-input multiple-output (MIMO) system based on variable-rate MQAM. The proposed scheme is a closed-loop system, achieves adaptive bit and power allocation according to real-time channel state information (CSI), and the tradeoff between the diversity and multiplexing gains that can simultaneously achieved over a low-rate...
Multiple input multiple output (MIMO) systems are considered as potential candidates for future high data rates wireless networks. However these systems present a practical problem which is the cost of hardware related to every additional antenna. In this paper, we present an effective suboptimal antenna algorithm based on frame error rate for MIMO systems. It only needs a sorted QR decomposition...
We present a new receiver structure able to deliver high data rates in a multi-input-multi-output (MIMO) frequency selective wireless environment. The new algorithm is obtained by canceling interference from the received symbols successively with the decision feed-forward equalizer (DFE) solution as a well known expression encountered in fast recursive least squares (RLS) adaptive algorithms, and...
A fast square-root detection algorithm for V-BLAST is proposed to improve the high complexities when conventional square-root detection algorithm detects in MIMO receivers. It simplifies the computing process of conventional square-root detection algorithm and proposes a parallel processing algorithm of decided signal's feedback and received signal's interference cancellation. The detection complexities...
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