Results 271 to 280 of about 2,569,604 (332)

Joint Network-Channel Design with Destination-Relay Feedback in Multiple-Access Relay Channel

2010 International Conference on Internet Technology and Applications, 2010
The multiple-access relay channel (MARC) based on network coding, typically with two sources, one relay, and one destination, has been proposed in recent papers as an approach to achieve diversity gain in wireless networks and reduce the number of transmissions by the relay node. However, conventional network-coding-based MARC scheme wastes the channel
Jishun Wang, Yun Liu, Yunhua Tan, Bocheng Zhu   +3 more
openaire   +1 more source

Multiple-Access Relay Channel with Network Coding and Non-Ideal Source-Relay Channels

2007 4th International Symposium on Wireless Communication Systems, 2007
The multiple-access relay channel (MARC) based on network coding has been proposed in recent papers as a means to achieve diversity gain in wireless networks, at the same time reducing the number of transmissions by a relay node. In MARC, multiple sources transmit to a common destination with the assistance of a single relay.
Dereje H. Woldegebreal, Holger Karl
openaire   +1 more source

Multiple‐access relay channels with non‐causal channel state information at the relay

Transactions on Emerging Telecommunications Technologies, 2014
AbstractIn this paper, we study state‐dependent multiple‐access relay channel (MARC). (i) Inner and outer bounds are derived for two‐user state‐dependent discrete memoryless MARC in which channel state information is known non‐causally at the relay (informed relay).
Mohammad Osmani‐Bojd, Ghosheh Abed Hodtani   +1 more
openaire   +1 more source

Diversity and Multiplexing of Opportunistic Shared Relay Channel and the X-Relay Channel

GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference, 2009
In this paper we study opportunistic communication in two relay channels, the shared relay channel (SRC) and the X-relay channel (XRC). The shared relay channel consists of multiple non-interfering source-destination pairs sharing one relay. The X relay channel is a multi-source multidestination network where each source has a message for each ...
Mohamed Abouelseoud, Aria Nosratinia
openaire   +1 more source

The Multiple-Relay Channel with Estimate-and-Forward Relaying

2007 IEEE International Symposium on Information Theory, 2007
In this paper we consider the multiple-relay channel. For this scenario there are two well known results: the decode-and- forward (DAF) result of [Xie and Kumar, 2005] and the estimate-and forward (EAF) result of [Kramer et al., 2005]. However, the EAF result does not lend itself to numerical evaluation due to the large number of parameters to be ...
Ron Dabora, Sergio D. Servetto
openaire   +1 more source

Improving diversity of relay channels: Beamforming and relay selection

2008 IEEE 16th Signal Processing, Communication and Applications Conference, 2008
In this paper, the performance of various beamforming and relay selection schemes for fading relay channels, are investigated. Beamforming schemes that maximize the diversity of the system for amplify&forward (AF) and decode&forward (DF) methods, are proposed.
Ebru Sinem Toker, Mehmet Ertugrul Celebi
openaire   +1 more source

Fading relay channels: performance limits and space-time signal design

IEEE Journal on Selected Areas in Communications, 2004
R. Nabar, H. Bölcskei, Felix W. Kneubühler   +2 more
semanticscholar   +1 more source

Spectral efficient protocols for half-duplex fading relay channels

IEEE Journal on Selected Areas in Communications, 2007
B. Rankov, A. Wittneben
semanticscholar   +1 more source

Self-Energy Recycling for RF Powered Multi-Antenna Relay Channels

IEEE Transactions on Wireless Communications, 2017
Duckdong Hwang, K. Hwang, Dong In Kim, Tae-Jin Lee   +3 more
semanticscholar   +1 more source

Artificial channels for confined mass transport at the sub-nanometre scale

Nature Reviews Materials, 2021
Jie Shen, Gong-Ping Liu, Yu Han
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