Search results for "relay nodes"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
2	Ying Zhu, Qi Han	The More Relay Nodes, the More Energy Efficient?	CSE	2009	DBLP DOI BibTeX RDF
2	Jianwei Xie, Pingyi Fan	Capacity and Delay of the Wireless Network with Special Relay Nodes.	NPC Workshops	2008	DBLP DOI BibTeX RDF	special relay nodes, delay, capacity
2	Gruia Calinescu, Sutep Tongngam	Relay Nodes in Wireless Sensor Networks.	WASA	2008	DBLP DOI BibTeX RDF
2	Kuan-Ta Chen, Jing-Kai Lou	Toward an understanding of the processing delay of peer-to-peer relay nodes.	DSN	2008	DBLP DOI BibTeX RDF
2	Ataul Bari, Yufei Xu, Arunita Jaekel	Integrated Placement and Routing of Relay Nodes for Fault-Tolerant Hierarchical Sensor Networks.	ICCCN	2008	DBLP DOI BibTeX RDF
2	Jorge Mena, Vana Kalogeraki	Dynamic Relay Node Placement in Wireless Sensor Networks.	SAINT	2008	DBLP DOI BibTeX RDF	Relay Nodes, Wireless Sensor Networks
2	Chunhua Zhao, Peng Chen	Particle swarm optimization for optimal deployment of relay nodes in hybrid sensor networks.	IEEE Congress on Evolutionary Computation	2007	DBLP DOI BibTeX RDF
2	Baris Coskun, Nasir D. Memon	Efficient Detection of Delay-Constrained Relay Nodes.	ACSAC	2007	DBLP DOI BibTeX RDF
2	Ataul Bari, Arunita Jaekel, Subir Bandyopadhyay	Optimal Placement of Relay Nodes in Two-Tiered, Fault Tolerant Sensor Networks.	ISCC	2007	DBLP DOI BibTeX RDF
2	Ping Li, Mengtian Rong, Yisheng Xue, Lan Wang, Egon Schulz	Performance Analysis of Cellular System Enhanced with Two-Hop Fixed Relay Nodes.	VTC Spring	2007	DBLP DOI BibTeX RDF
2	Aravindhan Venkateswaran, Venkatesh Sarangan, Thomas F. La Porta, Raj Acharya	A mobility prediction based relay deployment framework for conserving power in manets.	MSWiM	2007	DBLP DOI BibTeX RDF	relay nodes, energy efficiency, mobility prediction, manets, controlled mobility
2	Hai Liu, Peng-Jun Wan, Xiaohua Jia	On optimal placement of relay nodes for reliable connectivity in wireless sensor networks.	J. Comb. Optim.	2006	DBLP DOI BibTeX RDF	Fault-tolerant, Sensor networks, Approximation algorithms, Relay node placement
2	Aaron So, Ben Liang	A Lagrangian Approach for the Optimal Placement of Wireless Relay Nodes in Wireless Local Area Networks.	Networking	2006	DBLP DOI BibTeX RDF	immobile relays, optimal placement, WLAN, throughput capacity
2	Ramin Khalili, Kavé Salamatian	A New Relaying Scheme for Cheap Wireless Relay Nodes.	WiOpt	2005	DBLP DOI BibTeX RDF
1	S. A. Arshad, M. A. Murtaza, M. Tahir	Optimal buffer management for relay nodes in integrated wireless sensor and vehicular networks.	CCNC	2012	DBLP DOI BibTeX RDF
1	Chien-Yu Wu, Hann-Jang Ho, Sing-Ling Lee, Shu-Jye Chang	Energy-Aware Link Scheduling Algorithms to Maximize Life Cycle of Relay Nodes on IEEE 802.16e Mesh Networks.	AINA	2012	DBLP DOI BibTeX RDF
1	Sho Nishimura, Masayoshi Shimamura, Hiroyuki Koga, Takeshi Ikenaga	Transparent caching scheme on advanced relay nodes for streaming services.	ICOIN	2012	DBLP DOI BibTeX RDF
1	Farid Farahmand, Isabella Cerutti, Ankitkumar N. Patel, Jason P. Jue, Joel J. P. C. Rodrigues	Performance of vehicular delay-tolerant networks with relay nodes.	Wireless Communications and Mobile Computing	2011	DBLP DOI BibTeX RDF
1	Jinglei Li, Qinghai Yang, Kyung Sup Kwak, Fenglin Fu	Game Theoretic Approach for Enforcing Truth-Telling upon Relay Nodes.	IEICE Transactions	2011	DBLP BibTeX RDF
1	Jeanyeung Jang, Kyunbyoung Ko	Exact & Closed-Form BER Expressions Based on Error-Events at Relay Nodes for DF Relay Systems over Rayleigh Fading Channels.	IEICE Transactions	2011	DBLP BibTeX RDF
1	Bum-Gon Choi, Sueng Jae Bae, Kwang-Ryul Jung, Aesoon Park, Min Young Chung	Resource Allocation Scheme Considering Local Channel Quality Information and Buffer Status of Relay Nodes in Relay-Based Cellular Networks.	IEEE Communications Letters	2011	DBLP DOI BibTeX RDF
1	Tamer M. Deyab, Uthman A. Baroudi, Shokri Z. Selim	Optimal placement of heterogeneous wireless sensor and relay nodes.	IWCMC	2011	DBLP DOI BibTeX RDF
1	Sushant Sharma, Yi Shi, Y. Thomas Hou, Sastry Kompella	Achievable Rate Analysis in Network-Coded Cooperative Communications with Multiple Relay Nodes.	ICC	2011	DBLP DOI BibTeX RDF
1	Zhangchao Ma, Wei Xiang, Hang Long, Wenbo Wang	Proportional Fair Resource Partition for LTE-Advanced Networks with Type I Relay Nodes.	ICC	2011	DBLP DOI BibTeX RDF
1	Rami Cohen, Danny Raz	Cost effective resource allocation of overlay routing relay nodes.	INFOCOM	2011	DBLP DOI BibTeX RDF
1	Roberto Fantini, Dario Sabella, Marco Caretti	An E3F based assessment of energy efficiency of relay nodes in LTE-advanced networks.	PIMRC	2011	DBLP DOI BibTeX RDF
1	Roberto Fantini, Dario Sabella, Marco Caretti	Energy Efficiency in LTE-Advanced Networks with Relay Nodes.	VTC Spring	2011	DBLP DOI BibTeX RDF
1	Fuad E. Alsaadi, Mohammad Nikkar, Jaafar M. H. Elmirghani	Adaptive mobile optical wireless systems employing a beam clustering method, diversity detection, and relay nodes.	IEEE Transactions on Communications	2010	DBLP DOI BibTeX RDF
1	Oleg Burdakov, Patrick Doherty, Kaj Holmberg, Per-Magnus Olsson	Optimal placement of UV-based communications relay nodes.	J. Global Optimization	2010	DBLP DOI BibTeX RDF
1	Masayoshi Nomata, Akio Koyama, Leonard Barolli	A Multicast Routing Protocol for Reduction of Relay Nodes in MANETs.	NBiS	2010	DBLP DOI BibTeX RDF
1	Bhargav Medepally, Neelesh B. Mehta	Voluntary Cooperative Energy Harvesting Relay Nodes: Analysis and Benefits.	ICC	2010	DBLP DOI BibTeX RDF
1	Masayoshi Shimamura, Takeshi Ikenaga, Masato Tsuru	Advanced Relay Nodes for Adaptive Network Services - Concept and Prototype Experiment.	BWCCA	2010	DBLP DOI BibTeX RDF
1	Hiroki Tamura, Hikaru Kobayashi, Hiroshi Shigeno, Ken-ichi Okada	Examination of Selection for Relay Nodes Adapted to Priority of Transportation in Triage Network.	BWCCA	2010	DBLP DOI BibTeX RDF
1	Chun-Ting Huang	Improving the Multimedia Processing of Relay Nodes in Mesh Wireless Networks.	IIH-MSP	2010	DBLP DOI BibTeX RDF	Relay node, SimpleScalar, Multimedia processing
1	Jun Liu, Zhengding Qiu, Min Wu, Chao Shen	Multiple Relay Nodes Selection Scheme with Zero Forcing Weighting Matrix in MIMO Relay Networks.	VTC Fall	2010	DBLP DOI BibTeX RDF
1	HyungJune Lee, Martin Wicke, Branislav Kusy, Omprakash Gnawali, Leonidas J. Guibas	Data stashing: energy-efficient information delivery to mobile sinks through trajectory prediction.	IPSN	2010	DBLP DOI BibTeX RDF	mobile data delivery, sensor networks, network optimization, mobility pattern, trajectory prediction
1	Hongzhi Jiao, Frank Y. Li	A contention-based multiple access protocol in cooperative wireless networks.	IWCMC	2010	DBLP DOI BibTeX RDF	contention-based MAC, Markov Chain, cooperative communications
1	Amer M. Magableh, Mustafa M. Matalgah	Closed-form expression for the BER performance in cooperative communication systems with MRC over Rayleigh fading channels.	IWCMC	2010	DBLP DOI BibTeX RDF	preferable link, switching combining, cooperative, fading
1	Amer M. Magableh, Mustafa M. Matalgah	Relay-based cooperative transmission protocol with preferable-link switching combining scheme.	IWCMC	2010	DBLP DOI BibTeX RDF	preferable link, switching combining, cooperative, fading
1	Hengyou Wang, Mugen Peng, Wenbo Wang, Hequan Wu	Performance analysis of cooperative diversity in hierarchical heterogeneous radio access networks.	IWCMC	2010	DBLP DOI BibTeX RDF	heterogeneous wireless communication system, cooperative communication, outage probability
1	Te-Yuan Huang, Kok-Kiong Yap, Ben Dodson, Monica S. Lam, Nick McKeown	PhoneNet: a phone-to-phone network for group communication within an administrative domain.	MobiHeld	2010	DBLP DOI BibTeX RDF	NOX, phone-to-phone, software-defined networks, XMPP, OpenFlow
1	F.-C. Zheng, Alister G. Burr, Sverrir Olafsson	Signal Detection for Distributed Space-Time Block Coding: 4 Relay Nodes under Quasi-Synchronisation.	IEEE Transactions on Communications	2009	DBLP DOI BibTeX RDF
1	Yusuke Sugio, Hiroyuki Koga, Masayoshi Shimamura, Takeshi Ikenaga	Streaming Media Caching on Advanced Relay Nodes.	SAINT	2009	DBLP DOI BibTeX RDF
1	Vasco N. G. J. Soares, Farid Farahmand, Joel J. P. C. Rodrigues	Improving Vehicular Delay-Tolerant Network Performance with Relay Nodes.	NGI	2009	DBLP DOI BibTeX RDF
1	Elisabeth Uhlemann, Thomas Nolte	Scheduling Relay Nodes for Reliable Wireless Real-time Communications.	ETFA	2009	DBLP DOI BibTeX RDF
1	Abdulghani M. Elazreg, Faied M. Abdurahman, Jonathon A. Chambers	Distributed Closed-Loop Quasi-Orthogonal Space Time Block Coding with four relay Nodes: overcoming Imperfect Synchronization.	WiMob	2009	DBLP DOI BibTeX RDF
1	Ernest Kurniawan, Sumei Sun, Kai Yen	Transmission strategy of fountain code in cooperative networks with multiple relay nodes.	PIMRC	2009	DBLP DOI BibTeX RDF
1	Branislav Kusy, HyungJune Lee, Martin Wicke, Nikola Milosavljevic, Leonidas J. Guibas	Predictive QoS routing to mobile sinks in wireless sensor networks.	IPSN	2009	DBLP DOI BibTeX RDF
1	Mohamed Abdallah	Cooperative beamforming for multi-hop relaying in wireless sensor networks.	IWCMC	2009	DBLP DOI BibTeX RDF	sensor networks, cooperative communications, beamforming
1	Xin He, Tao Luo, Jianfeng Li, Guangxin Yue, Hao Zhao	Randomized space-time block coding with limited feedback.	IWCMC	2009	DBLP DOI BibTeX RDF	limited feedback, randomized STBC, cooperative relay
1	Kook-Hee Han, Seung-Woo Choi, Byung-Chul Park, Jung-Jun Lee	An implementation of a wireless sensor network-based meter reading system.	SenSys	2009	DBLP DOI BibTeX RDF	meter reading, wireless sensor network, AMR, AMI
1	Chuanxiong Guo, Guohan Lu, Dan Li, Haitao Wu, Xuan Zhang, Yunfeng Shi, Chen Tian, Yongguang Zhang, Songwu Lu	BCube: a high performance, server-centric network architecture for modular data centers.	SIGCOMM	2009	DBLP DOI BibTeX RDF	modular data center, server-centric network, multi-path
1	Mahmood Mohassel Feghhi, Bahman Abolhassani	Spectrally efficient cooperative coded schemes for next generation wireless networks.	CCECE	2009	DBLP DOI BibTeX RDF
1	Jin Zhu	On the power efficiency and optimal transmission range of wireless sensor nodes.	EIT	2009	DBLP DOI BibTeX RDF
1	Daisuke Kasamatsu, Norihiko Shinomiya, Tadashi Ohta	A Broadcasting Method considering Battery Lifetime and Distance between Nodes in MANET.	ICDCS Workshops	2009	DBLP DOI BibTeX RDF
1	Qingshan Wang, Yinlong Xu, Qi Wang, Cheng Zhan	Relay-Based Multicast Routing in Multirate-Aware MANETs.	ICDCS Workshops	2009	DBLP DOI BibTeX RDF
1	Kazuhiro Kono, Shinnosuke Nakano, Yoshimichi Ito, Noboru Babaguchi	Performance Analysis of Anonymous Communication System 3-Mode Net.	IAS	2009	DBLP DOI BibTeX RDF
1	Xinhua Yang, Tracy Camp	An Energy-Aware Relay Selection Scheme for ALLIANCES.	PerCom Workshops	2009	DBLP DOI BibTeX RDF
1	Jonas Karlsson, Andreas Kassler, Anna Brunstrom	Impact of packet aggregation on TCP performance in Wireless Mesh Networks.	WOWMOM	2009	DBLP DOI BibTeX RDF
1	Erlend Larsen, Lars Landmark, Vinh Pham, Øivind Kure, Paal E. Engelstad	Routing with transmission buffer zones in MANETs.	WOWMOM	2009	DBLP DOI BibTeX RDF
1	Yuchul Kim, Gustavo de Veciana	Is rate adaptation beneficial for inter-session network coding?	IEEE Journal on Selected Areas in Communications	2009	DBLP DOI BibTeX RDF
1	Daisuke Umehara, Tomoya Hirano, Satoshi Denno, Masahiro Morikura, Takatoshi Sugiyama	Wireless network coding in slotted aloha with two-hop unbalanced traffic.	IEEE Journal on Selected Areas in Communications	2009	DBLP DOI BibTeX RDF
1	Yanwu Ding, Jian-Kang Zhang, Kon Max Wong	Ergodic Channel Capacities for the Amplify-and-Forward Half-Duplex Cooperative Systems.	IEEE Transactions on Information Theory	2009	DBLP DOI BibTeX RDF
1	Peter Rost, Gerhard Fettweis	Analysis of a Mixed Strategy for Multiple Relay Networks.	IEEE Transactions on Information Theory	2009	DBLP DOI BibTeX RDF
1	Enzo Baccarelli, Mauro Biagi, Cristian Pelizzoni, Nicola Cordeschi	Maximum-Rate Node Selection for Power-Limited Multiantenna Relay Backbones.	IEEE Trans. Mob. Comput.	2009	DBLP DOI BibTeX RDF
1	Chi Pan Chan, Soung Chang Liew, An Chan	Many-to-One Throughput Capacity of IEEE 802.11 Multihop Wireless Networks.	IEEE Trans. Mob. Comput.	2009	DBLP DOI BibTeX RDF
1	Aravindhan Venkateswaran, Venkatesh Sarangan, Thomas F. La Porta, Raj Acharya	A Mobility-Prediction-Based Relay Deployment Framework for Conserving Power in MANETs.	IEEE Trans. Mob. Comput.	2009	DBLP DOI BibTeX RDF
1	Beibei Wang, Zhu Han, K. J. Ray Liu	Distributed Relay Selection and Power Control for Multiuser Cooperative Communication Networks Using Stackelberg Game.	IEEE Trans. Mob. Comput.	2009	DBLP DOI BibTeX RDF
1	Tao Cui, Feifei Gao, Tracey Ho, Arumugam Nallanathan	Distributed Space-Time Coding for Two-Way Wireless Relay Networks.	IEEE Transactions on Signal Processing	2009	DBLP DOI BibTeX RDF
1	Behnaam Aazhang, Christoph F. Mecklenbräuker, Masoumeh Nasiri-Kenari, Zolfa Zeinalpour-Yazdi, Joachim Wehinger	Bounds on the delay-constrained capacity of UWB communication with a relay node.	IEEE Transactions on Wireless Communications	2009	DBLP DOI BibTeX RDF
1	Tae Won Ban, Wan Choi, Bang Chul Jung, Dan Keun Sung	A cooperative phase steering scheme in multi-relay node environments.	IEEE Transactions on Wireless Communications	2009	DBLP DOI BibTeX RDF
1	Aitor del Coso, Christian Ibars	Achievable rates for the AWGN channel with multiple parallel relays.	IEEE Transactions on Wireless Communications	2009	DBLP DOI BibTeX RDF
1	Aitor del Coso, Christian Ibars	Linear Relaying for the Gaussian multiple-access and broadcast channels.	IEEE Transactions on Wireless Communications	2009	DBLP DOI BibTeX RDF
1	Yinman Lee, Ming-Hung Tsai, Sok-Ian Sou	Performance of decode-and-forward cooperative communications with multiple dual-hop relays over nakagami-m fading channels.	IEEE Transactions on Wireless Communications	2009	DBLP DOI BibTeX RDF
1	Man-On Pun, D. Richard Brown III, H. Vincent Poor	Opportunistic collaborative beamforming with one-bit feedback.	IEEE Transactions on Wireless Communications	2009	DBLP DOI BibTeX RDF
1	Dheeraj Sreedhar, Ananthanarayanan Chockalingam, Bikash Sundar Rajan	Single-symbol ML decodable distributed STBCs for partially-coherent cooperative networks.	IEEE Transactions on Wireless Communications	2009	DBLP DOI BibTeX RDF
1	Ahmed Iyanda Sulyman, Glen Takahara, Hossam S. Hassanein, Maan Kousa	Multi-hop capacity of MIMO-multiplexing relaying systems.	IEEE Transactions on Wireless Communications	2009	DBLP DOI BibTeX RDF
1	Sergiy A. Vorobyov, Tho Le-Ngoc, Khoa T. Phan, Chintha Tellambura	Power allocation in wireless multi-user relay networks.	IEEE Transactions on Wireless Communications	2009	DBLP DOI BibTeX RDF
1	Huiming Wang, Xiang-Gen Xia, Qinye Yin	Distributed space-frequency codes for cooperative communication systems with multiple carrier frequency offsets.	IEEE Transactions on Wireless Communications	2009	DBLP DOI BibTeX RDF
1	Huiming Wang, Xiang-Gen Xia, Qinye Yin	Computationally efficient equalization for asynchronous cooperative communications with multiple frequency offsets.	IEEE Transactions on Wireless Communications	2009	DBLP DOI BibTeX RDF
1	Zhimeng Zhong, Shihua Zhu, Arumugam Nallanathan	Distributed space-time trellis code for asynchronous cooperative communications under frequency-selective channels.	IEEE Transactions on Wireless Communications	2009	DBLP DOI BibTeX RDF
1	Javier Del Ser, Mikel Mendicute, Pedro M. Crespo, Sergio Gil-Lopez, Ignacio (Iñaki) Olabarrieta	Joint Source-Channel-Network Decoding and Blind Estimation of Correlated Sensors Using Concatenated Zigzag Codes.	ADHOC-NOW	2009	DBLP DOI BibTeX RDF
1	Abdullah Konak, Sadan Kulturel-Konak	An Integrated Genetic Algorithm and Integer Programming Approach to the Network Design Problem with Relays.	CPAIOR	2009	DBLP DOI BibTeX RDF
1	Myungsik Yoo, Junwon Lee, Younghan Kim, Souhwan Jung	Link Stability-Aware Ad Hoc Routing Protocol with Multiple Sampling Rates.	NEW2AN	2009	DBLP DOI BibTeX RDF
1	Behrouz Maham, Mérouane Debbah, Are Hjørungnes	Energy-efficient cooperative routing in BER constrained multishop networks.	Frontiers of Computer Science in China	2009	DBLP DOI BibTeX RDF	routing, energy efficiency, multihop networks, outage probability, cooperative transmission
1	Yuh-Shyan Chen, Yi-Jiun Liao, Yun-Wei Lin, Ge-Ming Chiu	HVE-mobicast: a hierarchical-variant-egg-based mobicast routing protocol for wireless sensornets.	Telecommunication Systems	2009	DBLP DOI BibTeX RDF	Spatiotemporal multicast, Mobicast, Cluster, Wireless sensor network, Routing
1	Guihai Chen, Chengfa Li, Mao Ye, Jie Wu	An unequal cluster-based routing protocol in wireless sensor networks.	Wireless Networks	2009	DBLP DOI BibTeX RDF	Unequal clustering, Hot spot problem, Wireless sensor networks, Routing, Network lifetime
1	Karim G. Seddik, K. J. Ray Liu	On Relay Nodes Deployment for Distributed Detection in Wireless Sensor Networks.	GLOBECOM	2008	DBLP DOI BibTeX RDF
1	Fredrik Boye, Peter Rost, Gerhard Fettweis	Adaptive radio resource management for a cellular system with fixed relay nodes.	PIMRC	2008	DBLP DOI BibTeX RDF
1	Raphaël Kummer, Peter G. Kropf, Pascal Felber	Building multicast trees in ad-hoc networks.	Autonomics	2008	DBLP DOI BibTeX RDF	mobile ad-hoc computing, wireless networks protocol, MANETs, mobile networking, ad-hoc wireless networks, multicast trees
1	Yi Shi, Sushant Sharma, Y. Thomas Hou, Sastry Kompella	Optimal relay assignment for cooperative communications.	MobiHoc	2008	DBLP DOI BibTeX RDF	wireless networks, cooperative communications, network capacity
1	Chia-Chun Chang, Min-Kuan Chang	Distributed ad-hoc passive routing path selection algorithm with prioritized broadcasting order based on non-realtime and semi-global routing information.	Mobility Conference	2008	DBLP DOI BibTeX RDF	routing, energy efficiency, route discovery
1	Junseok Hwang, Andrei Shin, Hyenyoung Yoon	Dynamic reputation-based incentive mechanism considering heterogeneous networks.	PM2HW2N	2008	DBLP DOI BibTeX RDF	reputation, agent-based modeling, incentive mechanism, cooperative relay, personal networks
1	Chia-Hung Yen, Hwang-Cheng Wang	Broadcast routing based on new link cost model for ad-hoc networks.	PE-WASUN	2008	DBLP DOI BibTeX RDF	bottleneck lifetime, broadcast routing, forbidden set, minimum cost spanning tree, ad-hoc network, cost model
1	Yalin Evren Sagduyu, Dongning Guo, Randall Berry	Throughput and stability of digital and analog network coding for wireless networks with single and multiple relays.	WICON	2008	DBLP DOI BibTeX RDF	analog network coding, digital network coding, queue stability, stable throughput region, throughput optimal control
1	Nima Sarshar, Behnam Attaran Rezaei, Vwani P. Roychowdhury	Low latency wireless ad hoc networking: power and bandwidth challenges and a solution.	IEEE/ACM Trans. Netw.	2008	DBLP DOI BibTeX RDF	multi-resolution randomized hierarchy, wireless ad hoc networks, network latency, scalable routing
1	Wei Wang 0002, Vikram Srinivasan, Kee Chaing Chua	Extending the lifetime of wireless sensor networks through mobile relays.	IEEE/ACM Trans. Netw.	2008	DBLP DOI BibTeX RDF	mobile relay, sensor networks, network lifetime
1	Rashid Bin Muhammad	Range Assignment Approximation Based on Steiner Tree in Ad Hoc Wireless Networks.	AINA	2008	DBLP DOI BibTeX RDF
1	Ryousei Takano, Motohiko Matsuda, Tomohiro Kudoh, Yuetsu Kodama, Fumihiro Okazaki, Yutaka Ishikawa, Yasufumi Yoshizawa	High Performance Relay Mechanism for MPI Communication Libraries Run on Multiple Private IP Address Clusters.	CCGRID	2008	DBLP DOI BibTeX RDF	IMPI, Private IP address clusters, Grid computing, MPI
1	Ruben Heras Evangelio, Slawomir Stanczak, Clemens Schnurr	Energy efficiency of a two-stage relaying scheme in wireless sensor networks.	CISS	2008	DBLP DOI BibTeX RDF