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While operators have started deploying fourth generation (4G) wireless communication systems, which could provide up to 1Gbps downlink peak data rate, the improved system capacity is still insufficient to meet the drastically increasing demand of mobile users over the next decade. The main causes of the above-mentioned phenomenon include the following two aspects: 1) the growth rate of the network...
In this paper we consider a sensor network deployed far away from the base station. Each sensor in the network is equipped with two radio interfaces: the low-power IEEE 802.15.4 radio and the high-bandwidth 3G radio. The low-power radios are used on all sensors to transmit data within the network, while the high-bandwidth radios are activated only on a subset of sensors, referred to as gateways, for...
Compared with the vehicle monitoring system that implements the management in physical entity dimension of road traffic, this paper presents a vehicle monitoring system based on the Internet of Things. Through the control of the vehicle in the virtual information space, it achieves accurate and intelligent vehicle management. 5 layers framework of the system and its working principals are described...
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