16 papers · ranked by Valyu relevance
Seok-Hwan Park, Osvaldo Simeone, Onur Sahin, Shlomo Shamai
In this work, a relay channel is studied in which a source encoder communicates with a destination decoder through a number of out-of-band relays that are connected to the decoder through capacityconstrained digital backhaul links. This model is motivated by the uplink of cloud radio access networks. In this scenario…
Oussama Messadi, Aduwati Sali, Vahid Khodamoradi, Asem A. Salah + 3 more
'Gaofeng Pan' 'Shaiful J. Hashim' 'Nor K. Noordin'] Unlike the fixed power grid cooperative networks, which are mainly based on the reception reliability parameter while choosing the best relay, the wireless-powered cooperative communication network (WPCCN) and in addition to the reception reliability the transmission…
Yang Yu, Xiaoqing Tang, Guihui Xie, Han-Chieh Chao
This paper investigates a simultaneous wireless information and power transfer (SWIPT) decode-and-forward (DF) relay network, where a source node transmits data to a destination node through the assistance of multi-hop passive relays. We employ the time-switching (TS) protocol, enabling the relays to harvest energy…
Xudong Zhong, Baoquan Ren, Xiangwu Gong, Hongjun Li + 3 more
'Jie Zeng' 'Xin Su'] Backbone satellites in a space information network (SIN) can be used as air base stations or data relay satellites (DRSs) to realize cross-system, cross-network and long-distance relay transmission. In this paper, a traffic load optimization problem for multi-satellite relay systems in SIN is…
Flavio L. Duarte, Rodrigo C. de Lamare
—In this work, we present a cloud-aided uplink framework for multi-way multiple-antenna relay systems which facilitates joint linear Maximum Likelihood (ML) symbol detection in the cloud and where users are selected to simultaneously transmit to each other aided by relays. We also investigate relay selection techniques…
Harry Gray
Developed in this article is the electron transfer network, a graph structure whose adjacent nodes are reversibly coupled chemically reactive species whose forward and reverse rate constants are calculated by semiclassical electron transfer theory. These ET networks resemble electric circuits containing branches…
Flavio L. Duarte, Rodrigo C. de Lamare
—In this paper, we investigate relay selection for cooperative multiple-antenna systems that are equipped with buffers, which increase the reliability of wireless links. In particular, we present a novel relay selection technique based on switching and the Max-Link protocol that is named Switched Max-Link. We also…
Yang Yu, Xiaoqing Tang, Guihui Xie, Sofiane Hamrioui + 1 more
Multi-hop relaying can solve the problems of limited single-hop wireless communication distance, poor signal quality, or the inability to communicate directly by “relaying” data transmission through multiple intermediate nodes. It serves as the cornerstone for building large-scale, highly reliable, and self-adapting…
Changcai Han, Jinsheng Yang
The multi-source cooperation integrating distributed low-density parity-check codes is investigated to jointly collect data from multiple sensor nodes to the mobile sink in the wireless sensor network. The one-round and two-round cooperative data collection schemes are proposed according to the moving trajectories of…
Ferdi Kara, Hakan Kaya, Okan Erkaymaz, Frtan Ozturk
—In wireless communications, the cooperative communication (CC) technology promises performance gains compared to traditional Single-Input Single Output (SISO) techniques. Therefore, the CC technique is one of the nominees for 5G networks. In the Decode-and-Forward (DF) relaying scheme which is one of the CC…
Carlene E.-A. Campbell, Shafiullah Khan, Dhananjay Singh, Kok-Keong Loo
'Kok-Keong Loo'] The next generation surveillance and multimedia systems will become increasingly deployed as wireless sensor networks in order to monitor parks, public places and for business usage. The convergence of data and telecommunication over IP-based networks has paved the way for wireless networks. Functions…
M. Majid Butt, Ioannis Krikidis, Nicola Marchetti
—In this work, we address the relay selection problem for the wireless powered communication networks, where the relays harvest energy from the source radio frequency signals. A single source-destination pair is considered without a direct link. The connecting relay nodes are equipped with storage batteries of infinite…
Johanna E. M. Dickmann, Jochen C. Rink, Frank Jülicher
Morphogen gradients are a central concept in developmental biology. Their formation often involves the secretion of morphogens from a local source, that spread by diffusion in the cell field, where molecules eventually get degraded. This implies limits to both the time and length scales over which morphogen gradients…
Junaid Qadir, Anwaar Ali, Kok‐Lim Alvin Yau, Arjuna Sathiaseelan + 1 more
'Jon Crowcroft'] Abstract—The Internet is inherently a multipath network—for an underlying network with only a single path connecting various nodes would have been debilitatingly fragile. Unfortunately, traditional Internet technologies have been designed around the restrictive assumption of a single working path…
Rory M. Power, Aline Tschanz, Timo Zimmermann, Jonas Ries
Since its inception, single molecule localization microscopy (SMLM) has enabled imaging scientists to visualize biological structures with unprecedented resolution. Particularly powerful implementations capable of 3D, multi-color and high-throughput imaging have yielded key biological insights although widespread…
Jürgen Behr, Timm Michel, Maya Giridhar, Santra Santhosh + 11 more
Large- to ultra-large-scale synthesis of nucleic acids is becoming an increasingly important tool for understanding and manipulating biological systems, as well as for developing new technologies based on engineered biological materials, including DNA-based nanofabrication, aptamers and writing digital data at the…