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The quality of water resources has a direct impact on the daily life of mankind and the sustainable development of society. However, with the rapid development of national industrialization, the current industrial wastewater discharge and improper handling have become more and more serious, especially for the growing domestic water pollution today, it is an urgent need for an efficient water quality...
It is difficult to address the problem of occlusion and loss of target when a single image tracking algorithm is utilized in high reliability occasions, such as prison, coal mines and military area. This paper presents a novel tracking and monitoring system based on wireless location and video. A coordinate frame of wireless system of scene constructed by binding the targets with RSSI labels is used...
Chinese next generation broadcast wireless (NGB-W) systems are aimed to provide high-speed, ubiquitous, and secure broadcast services and tri-play services to massive users. New terrestrial broadcast techniques are needed to support these services in NGB-W systems. In this paper, a new set of quasi-cyclic (QC) low density parity check (LDPC) codes with a moderate code length and a wide operation range...
Next-generation (Next-G) wireless terminals need to sense their ambient and adapt to the diverse deployment scenario requirements on the fly while leveraging technology scaling. Several key circuit and system innovations are required to make the realization of this vision possible. We discuss how compressed sampling can be exploited to design a rapid, GHz-wide and energy-efficient interferer detector...
Recently extensive works have been devoted to the performance analysis of physical layer security in wireless communication systems. However, the combination of physical layer security and quality of service (QoS) for route selection in multi-hop wireless ad hoc networks (WANETs) still remains an open technical challenge. As an initial step towards this end, this paper focuses on a multi-hop WANET...
In the field of information collection process, we not only pay attention to the environmental temperature, humidity, light, etc, but also hope to accurately locate acquisition nodes. Especially in the study of soil pH and soil nutrients, the soil pH is not uniformly distributed in different regions. In this paper, we constructed a wireless positioning sensor network based on the Zigbee technology,...
In some oil fields, the consumption of electricity and energy was very high because the beam pumping unit worked sustained, expect in the height period of electricity consumption. It increases the burden on the grid and make machines wearied easily when voltage instability. In this paper, we propose a concept of intermittent pumping to beam pumping unit and build a monitoring system of oil wells based...
The weighted sum capacity of a Gaussian interference system is a nonconvex function of transmit power allocation vector of all users in the system. This paper shows that, by representing its objective function as a difference of two convex functions (d.c.), the non-convex optimization problem can be converted into an equivalent d.c. global optimization problem, which can be solved efficiently by various...
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