3篇
您的检索式：关键字=wireless communication networks
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Network for hypersonic UCAV swarms显示文摘Unmanned combat aerial vehicles(UCAVs)that swarm with both autonomous decision-making and cooperative attacking have been regarded as revolutionary elements of modern warfare.In such a swarm,inter-group connectivity must be ensured in a network to maintain a collective consensus.In recent years,academia and industry have made many efforts to achieve common tactical data link systems and commercial drone networks.However,the existing results have difficulty meeting the needs of cooperative autonomous UCAV swarms with both hypersonic mobility and time sensitivity in severe confrontation scenarios.In this article,we conduct an in-depth investigation of the network used for the hypersonic UCAV swarms,which can be considered as a special form of mobile wireless network.Furthermore,faced with specific functional demands,we summarize the main challenges of designing this dedicated network.In addition,a comprehensive survey of potential solutions for the network design is presented.Lastly,we discuss the possible capabilities of the network given the current forefront of technology,as well as remaining challenges and open issues. | Shixun LUO Zhongshan ZHANG Shuai WANG Shuo ZHANG Jibo DAI Xiangyuan BU Jianping AN | 2020 | Science China(Information Sciences)2020，63，4： | 3 |
| 2 | Cooperative resource allocation in cognitive wireless powered communication networks with energy accumulation and deadline requirements显示文摘This study investigates a multi-carrier cognitive wireless powered communication network(CWPCN) with a wirelessly powered primary user(PU). A two-stage cooperative protocol between the PU and the secondary user(SU) is adopted so that the PU can harvest energy from the SU while the SU gains transmission opportunities. It is assumed that the energy harvested by the PU can be accumulated for future usage, and the quality of service of the PU is guaranteed by satisfying the required minimum number of data bits for a given deadline. Herein, we maximize the SU rate by considering the time allocation,subcarrier allocation, and power allocation in both an offline setting(in which the future channel gains are known a priori) and an online setting(in which only the current channel gains are known). In the offline and online schemes, the maximization problem is solved using the block-coordinate descent method and the Lagrange duality method. The effectiveness of the proposed schemes is evaluated and verified via simulation experiments against benchmark schemes. | Ding XU Qun LI | 2019 | Science China(Information Sciences)2019，62，8： | 2 |
| 3 | Reliable and Energy Efficient Protocol for Wireless Sensor Network显示文摘Low-power design is one of the most important issues in wireless sensor networks (WSNs) , while reliable information transmitting should be ensured as well. Transmitting power (TP) control is a simple method to make the power consumption down, but excessive interferences from potential adjacent operating links and communication reliability between nodes should be considered. In this paper, a reliable and energy efficient protocol is presented, which adopts adaptive rate control based on an optimal TP. A mathematical model considering average interference and network connectivity was used to predict the optimal TP. Then for the optimal TP, active nodes adaptively chose the data rate with the change of bit-error-rate(BER) performance. The efficiency of the new strategy was validated by mathematical analysis and simulations. Compared with 802.11 DCF which uses maximum unified TP and BASIC protocol, it is shown that the higher average throughput can achieve while the energy consumption per useful bit can be reduced according to the results. | 阚保强 蔡理 徐勇军 | 2007 | Tsinghua Science and Technology2007，12，S1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员