Results 71 to 80 of about 2,606,146 (326)
Pilot based channel estimation in amplify-and-forward MIMO relay networks
Tongxin xuebao, 2014 A channel estimation method in two time slots for two-hop amplify-and-forward MIMO relay channels is pro-posed.An algorithm for computing the optimal pair of source pilot and relay amplify matrix is developed,which mini-mizes the mean square error of the
Jian ZHOU, Bao-yu ZHENG
doaj +2 more sources
Relay Selection Schemes for FSO Communications over Turbulent Channels
Applied Sciences, 2019 Free Space Optics (FSO) Communication has attracted the attention of the researchers in the last decade due to its high data rate, security, and low cost.
Menna Allah Taher +3 more
doaj +1 more source
Bounds on the Capacity of the Relay Channel with Noncausal State at Source
, 2011 We consider a three-terminal state-dependent relay channel with the channel state available non-causally at only the source. Such a model may be of interest for node cooperation in the framework of cognition, i.e., collaborative signal transmission ...
Piantanida, Pablo +3 more
core +4 more sources
Functional-Decode-Forward for the General Discrete Memoryless Two-Way Relay Channel [PDF]
, 2010 We consider the general discrete memoryless two-way relay channel, where two users exchange messages via a relay, and propose two functional-decode-forward coding strategies for this channel.
Johnson, Sarah J. +2 more
core +2 more sources
Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application
Advanced Materials, EarlyView.This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong +12 more
wiley +1 more source
IEEE Access, 2018 In this paper, we investigate the secrecy performance of dual-hop randomize-and-forward (RaF) cognitive relay multi-channel wiretap networks over correlated fading channels, in which the eavesdropper can wiretap the information from source and relays ...
Mu Li +4 more
doaj +1 more source
On the Equal-Rate Capacity of the AWGN Multiway Relay Channel [PDF]
IEEE Transactions on Information Theory, 2012 The $L$-user additive white Gaussian noise multiway relay channel is investigated, where $L$ users exchange information at the same rate through a single relay.
L. Ong +2 more
semanticscholar +1 more source
Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects
Advanced Materials, EarlyView.Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley +1 more source
Tongxin xuebao, 2012 In a two-way relay system where two nodes exchange information via a half-duplex relay,the achievable data rates of both directions are limited by the weaker link.When the two-way channel is asymmetric due to relay positioning or channel fading,the sum ...
Dan WU, Ya-fei TIAN, Chen-yang YANG
doaj +2 more sources
Distributed Channel Access, Relay Selection and Time Assignment for QoE-Aware Relay Networks
IEEE Access, 2018 In this paper, we tackle the comprehensive problem jointing channel access, relay selection, and available time assignment for distributed relay networks which includes multiple source nodes and relay nodes.
Jianjun Jing +6 more
doaj +1 more source