搜索结果: 1-15 共查到“信息科学与系统科学基础学科 networks”相关记录20条 . 查询时间(0.171 秒)
Monitoring of Slope Movements coupling Autonomous Wireless Sensor Networks and Web Services
Monitoring slope movements landslide forecasts early warning systems wireless sensor networks
2015/6/30
Slope movements have caused severe damages of civil infrastructures and numerous human fatalities. Continuous monitoring of slope movements and the collection of vital landslide information are benefi...
k-Connectivity in Secure Wireless Sensor Networks with Physical Link Constraints - The On/Off Channel Model
k-Connectivity Secure Wireless Sensor Networks Physical Link Constraints The On/Off Channel Model Information Theory
2012/6/29
Random key predistribution scheme of Eschenauer and Gligor (EG) is a typical solution for ensuring secure communications in a wireless sensor network (WSN). Connectivity of the WSNs under this scheme ...
Blind Null-space Tracking for MIMO Underlay Cognitive Radio Networks
Blind Null-space MIMO Cognitive Radio Networks Information Theory
2012/4/17
Blind Null Space Learning (BNSL) has recently been proposed for fast and accurate learning of the null-space associated with the channel matrix between a secondary transmitter and a primary receiver. ...
Interference Alignment for Partially Connected MIMO Cellular Networks
Interference Alignment Partially Connected MIMO Cellular Networks
2012/2/29
In this paper, we propose an iterative interference alignment (IA) algorithm for MIMO cellular networks with partial connectivity, which is induced by heterogeneous path losses and spatial correlation...
On the Achievability of Interference Alignment for Three-Cell Multi-User MIMO Cellular Networks
Interference channel interference alignment degrees of freedom Multi-User MIMO
2011/9/19
Abstract: An interference alignment (IA) based scheme is proposed by joint design of transmit precoding matrices and receive beamforming matrices for the three-cell Multi-User MIMO (MU-MIMO) cellular ...
Interference minimization in physical model of wireless networks
interference wireless networks graph connectivity set cover randomized rounding
2011/10/9
Abstract: Interference minimization problem in wireless sensor and ad-hoc networks is considered. That is to assign a transmission power to each node of a network such that the network is connected an...
An Analytical Model for the Intercell Interference Power in the Downlink of Wireless Cellular Networks
Intercell interference power statistical modeling wireless networks Rayleigh fading lognormal shadowing
2011/9/16
Abstract: In this paper, we propose a methodology for estimating the statistics of the intercell interference power in the downlink of a multicellular network. We first establish an analytical express...
Prescient Beamforming by Primary Transmitters in Interweave Cognitive Radio Networks with a Single Primary Receiver
Cognitive radios spectrum sensing interference mitigation beamforming dirty-paper coding
2011/9/15
Abstract: This work investigates a fundamentally novel interweave cognitive radio network where the primary transmitter takes a proactive approach towards improving the accuracy of the spectrum sensin...
Heterogeneous Cellular Networks with Flexible Cell Association: A Comprehensive Downlink SINR Analysis
Heterogeneous Cellular Networks Flexible Cell Association Comprehensive Downlink SINR Analysis
2011/9/14
Abstract: In this paper we develop a tractable framework for SINR analysis in downlink heterogeneous cellular networks (HCNs) with flexible cell association policies. The HCN is modeled as a multi-tie...
Performance Guarantee under Longest-Queue-First Schedule in Wireless Networks
Wireless Networks Scheduling Longest Queue First Policy Stability Local Pooling Interference
2011/9/13
Abstract: Efficient link scheduling in a wireless network is challenging. Typical optimal algorithms require solving an NP-hard sub-problem. To meet the challenge, one stream of research focuses on fi...
Interference Networks with General Message Sets: A Random Coding Scheme
Interference Networks General Message Sets Broadcast Channel Mutiple Access Channel
2011/8/31
Abstract: In this paper, the Interference Network with General Message Sets (IN-GMS) is introduced in which several transmitters send messages to several receivers: Each subset of transmitters transmi...
Medium Access Control for Wireless Networks with Peer-to-Peer State Exchange
Medium Access Wireless Networks Peer-to-Peer State Exchange Information Theory
2011/8/31
Abstract: Distributed medium access control (MAC) protocols are proposed for wireless networks assuming that one-hop peers can periodically exchange a small amount of state information. Each station m...
Indirect Channel Sensing for Cognitive Amplify-and-Forward Relay Networks
amplify-and-forward relay network channel estimation indirect spectrum sensing
2011/8/30
Abstract: In cognitive radio network the primary channel information is beneficial. But it can not be obtained by direct channel estimation in cognitive system as pervious methods. And only one possib...
Cooperative Jamming for Secure Communications in MIMO Relay Networks
Cooperative Secure Communications MIMO Relay Networks Information Theory
2011/8/30
Abstract: Secure communications can be impeded by eavesdroppers in conventional relay systems. This paper proposes cooperative jamming strategies for two-hop relay networks where the eavesdropper can ...
Distributed SIR-Aware Scheduling in Large-Scale Wireless Networks
Distributed SIR-Aware Large-Scale Wireless Networks Information Theory
2011/8/31
Abstract: Opportunistic scheduling and routing can in principle greatly increase the throughput of decentralized wireless networks, but to be practical they must do so with small amounts of timely sid...