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A packet scheduling scheme in the downlink channel for IEEE 802.16 is proposed.The scheme can be implemented in the base station and is compatible to the MAC protocol of IEEE 802.16. In order incorporate the properties of location-dependent and burst error of wireless channels, we design a novel packet scheduling algorithm named the credit-based algorithm(More)
In automotive radar systems, only a small number of snapshots are available for direction-of-arrival (DOA) estimation in high mobility scenarios. We here propose a closed-form single-snapshot maximum likelihood (ML) DOA estimator based on the phase-comparison technique. The estimator can be effective in a wide field-of-view (FOV) scenario and is robust to(More)
The complexity of beamforming, such as complexity complex weighting and combining process, are extremely important for implementation. This work presents a low complexity time-domain statistic noise suppression and beam steering algorithm based on binary search strategy to estimate the optimal beam vector at the receivers. The beam steering algorithm based(More)
The arising proximity-based applications and services represent a recent and enormous socio-technological trend that has been generating innovative business models for the mobile networks. This paper proposes a WLAN-based beyond 4G (B4G) network architecture for proximity-based service (ProSe) where WLAN serves as the direct communication radio access(More)
Fig. 6. Array outputs (20) versus N. Conventional beamformer is compared with the conventional and robust (p = 1) HT algorithms. The outputs (20) were additionally averaged over the snapshot index t. Several basic adaptive beamforming algorithms have been compared using experimental shallow sea sonar data with a horizontal ULA of 15 hydrophones and moving(More)
An evacuation plan helps people move away from an area or a building. To assist rapid evacuation, we present an algorithm to compute the optimal route for each local region. The idea is to reduce congestion and maximize the number of evacuees arriving at exits in each time span. Our system considers crowd distribution, exit locations, and corridor widths(More)