We propose a distributed connectivity maintenance protocol that explicitly accounts for the probabilistic nature of wireless communication links. The proposed protocol is simple to implement and it achieves a given target communication quality between nodes, which is quantified by the minimum packet delivery rate between any pair of nodes in the network. We demonstrate the robustness of the pro...

In some large enclosures, such as underground stations or factory halls, which involve long reverberation time, low signal-to-noise ratio, public address systems are often used to improve the speech intelligibility. Nevertheless, too many distributed loudspeaker systems suffer an inappropriate use of loudspeakers. This can lead to an imperfect uniformity of audience coverage decreasing the spee...

LoRa is one of the promising techniques for enabling Low Power Wide Area Networks (LPWANs) for future Internet-of-Things (IoT) devices. Although LoRa allows flexible adaptations of coverage and data rates, it is subject to intrinsic types of interferences: co-SF interferences where end-devices with the same Spreading Factors (SFs) are subject to collisions, and inter-SF interferences where end-...

Do Public Health Interventions Crowd Out Private Health Investments? Malaria Control Policies in Eritrea It is often argued that engaging in indoor residual spraying (IRS) in areas with high coverage of mosquito bed nets may discourage net ownership and use. This is just a case of a public program inducing perverse incentives. We analyze new data from a randomized control trial conducted in Eri...

In addition to reasonable coverage of clinical aspects of diagnosis and treatment of this infection, there are chapters devoted to laboratory aspects of Pneumocystis carinii. These chapters cover the interaction of the organism with phagocytes, cultivation of the organism, and experimental models of infection. The book is relevant to clinicians interested in improving their factual knowledge ab...

Background First-pass perfusion CMR utilizes accelerated imaging to achieve high spatial resolution and coverage within a small acquisition window. Several compressed sensing (CS) methods have been proposed to accelerate perfusion imaging. However, patient motion due to imperfect breathholding and other factors leads to degraded quality of CS-reconstructed images. We recently demonstrated a CS ...

The goal of universal health coverage is to "ensure that all people obtain the health services they need without suffering financial hardship when paying for them." There are many connections between this goal and the state's legal obligation to realize the human right to health. In the context of this goal, it is important to assess private actors' involvement in the health sector. For example...

In this paper, the physical layer security of uplink non-orthogonal multiple access (NOMA) in large-scale networks is analyzed. An stochastic geometry approach is applied to derive new analytical expressions for the coverage probability and the effective secrecy throughput (EST) of the kth NOMA user, which may use a fixed or an adaptive transmission rate. We consider a protected zone around the...

We consider the problem of performing learning and inference in a large scale knowledge base containing imperfect knowledge with incomplete coverage. We show that a soft inference procedure based on a combination of constrained, weighted, random walks through the knowledge base graph can be used to reliably infer new beliefs for the knowledge base. More specifically, we show that the system can...

We present a polynomial-time reduction from parity games with imperfect information to safety games with imperfect information. Similar reductions for games with perfect information typically increase the game size exponentially. Our construction avoids such a blow-up by using imperfect information to realise succinct counters which cover a range exponentially larger than their size. In particu...