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The integration of radar and communication has attracted general interest with its advantage of equipment miniaturizing and high efficiency of spectrum, especially in intelligent transportation systems because of the need for transmitting and detecting simultaneously and the lack of room for various devices. Among various integration schemes, the integrated waveform which realizes transmitting and...
The dependence of dynamic range and pulsewidth of mode-locked laser (MLL) with different number of graphene saturable absorber is investigated and compared. The results showed that the dynamic range of the MLL decreased and the pulsewidth became shorter as the number of graphene layer increased. This study provides practical conclusion that the lower layer stacking is preferable to use as saturable...
High-voltage amplifiers have the features of high output voltage, wide frequency bandwidth, and desirable linearity. It is widely used for dielectric measurement in industrial and laboratory applications. This paper presents a new type of cascaded high-voltage amplifier with a voltage gain of 40 times for one circuit cell. The unit circuit is given in detail, which is based on an isolation circuit...
IEEE 802.16 based broadband wireless access network is considered as one of the most promising wireless access technologies. It employs a request/grant scheme in bandwidth allocation where each subscriber station (SS) can send bandwidth requests (BRs) to the base station (BS) before bandwidth can be granted to SSs. The 802.16 standard defines two types of BR strategies, namely incremental requests...
Vehicular ad-hoc networks (VANETs) play a critical role in enabling highway active safety applications such as collision warning and vehicle tracking. The most pressing challenge in enabling such applications is to maximize the amount of disseminated vehicle state information while avoiding network congestion. In this paper, we explore the structure of VANET tracking problem and propose an adaptive...
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