The Internet of things (IoT) holds much commercial potential and could facilitate distributed multiple-input multipleoutput (MIMO) communication in future systems. We study a distributed reception scenario in which a transmitter equipped with multiple antennas sends multiple streams via spatial multiplexing to a large number of geographically separated single antenna receive nodes. The receive ...

OBJECTIVE To evaluate whether administration of a D-galactose-based signal enhancer is useful in color Doppler sonography (CDS) for better detection of vascularity patterns, which may help to differentiate malignant from benign lymph nodes in patients with cutaneous melanomas. DESIGN Comparison of B-mode sonography, native CDS, and signal-enhanced CDS. SETTING Department of Dermatology and ...

Vehicle Ad Hoc Networks(VANETs) can help reduce traffic accidents and improve road safety by broadcasting Emergency Messages(EMs) between vehicles in advance so that the vehicle take action to avoid accidents. However, Its advantages are often compromised factors such as high mobility, uneven nodes’ distribution, signal attenuation, resulting lower reliability higher delay delivery of EMs. Besi...

introduction: size of axillary lymph nodes can be a predictor for breast abnormalities. the agents in the antiperspirants such as aluminum were observed in the breast biopsy of individual with abnormalities and antiperspirants usage. in this study, the relation between using antiperspirants and the size of axillary lymph nodes were evaluated in iranian women. methods: in this study, 120 women w...

Weareworking towardactualizing a real-time3D modeling system. This modeling system uses a sensor network that distributesmany 1mm-class sensor nodes in plastic clay. The distributed sensors sense the distances between them, and the sensor network collects the node-to-node distance information to recognize the clay shape by calculating the relative positions of the nodes. This paper proposes a d...

LoRaWAN exhibits several characteristics that can lead to an unfair distribution of the Data Extracted Rate (DER) among nodes. Firstly, the capture effect leads to a strong signal suppressing a weaker signal at the gateway and secondly, the spreading codes used are not perfectly orthogonal, causing packet loss if an interfering signal is strong enough. In these conditions, nodes experiencing hi...

We are working toward actualizing a real-time 3D modeling system. It uses a sensor network that distributes many 1 mm-class sensor nodes in plastic clay. The distributed sensors sense distances between them, and the sensor network collects the distance information for recognizing object shape by calculating relative positions of nodes based on the collected node-to-node distances. This paper pr...