Hamid R. Ahmadi

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Fifty four Mehraban ram lambs (6-to 8-month old, initial live weight 35.4 +/- 4.2 kg) were assigned to a completely randomized design consisting of 9 groups and were fed for 70 days with diets containing three levels of energy (2.3, 2.5 and 2.7 Mcal metabolizable energy per kg dry matter) and three levels of protein (10.5, 12.5 and 14.5 percentage in dry(More)
We consider a binary distributed detection problem in a wireless sensor network with inhomogeneous sensors, in which sensors send their binary phase shift keying (BPSK) modulated decisions to the fusion center (FC) over orthogonal channels that are subject to pathloss, Rayleigh fading, and Gaussian noise. Assuming training based channel estimation, we(More)
We propose a novel censoring scheme for the distributed detection problem in a wireless sensor network (WSNs) with N sensors, where the channels between the sensors and the fusion center (FC) is subject to fading and noise. To achieve the best tradeoff between energy efficiency and detection reliability, the FC forms the maximum ratio combing (MRC) fusion(More)
In this paper, we evaluate the performance of both uncoded and coded multiple access TH-UWB systems introduced in [1-3], in multipath Rayleigh fading channels. The receiver is a selective diversity combining receiver, known as SRake. Based on Gaussian distribution assumption for the multiple access interference at the output of SRake receiver and by using(More)
This paper investigates the increase in detection reliability that an adaptive network (with adaptive topology and channel-dependent decision and fusion rules) can provide, compared with a fixed topology network. We consider a network, consisting of <i>N</i> local detectors and a fusion center (FC), that is tasked with accessing the presence or absence of a(More)
We consider parallel binary distributed detection in a wireless sensor network, in which sensors send their binary phase shift keying (PSK) modulated decisions to the fusion center (FC) over communication channels, that are subject to Rayleigh fading and noise. The FC is tasked with detecting the presence of a Gaussian signal source. When it is present,(More)
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