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TWC
2008
125views more  TWC 2008»
14 years 9 months ago
Cooperative communications with relay-selection: when to cooperate and whom to cooperate with?
Abstract--In this paper, we propose a new cooperative communication protocol, which achieves higher bandwidth efficiency while guaranteeing the same diversity order as that of the ...
Ahmed S. Ibrahim, Ahmed K. Sadek, Weifeng Su, K. J...
GLOBECOM
2009
IEEE
15 years 4 months ago
Superimposed XOR: A New Physical Layer Network Coding Scheme for Two-Way Relay Channels
— We present a new physical layer network coding (PLNC) scheme, called superimposed XOR, for two-way relay channels. The new scheme specifically takes into account the channel a...
Jianquan Liu, Meixia Tao, Youyun Xu, Xiaodong Wang
ICC
2009
IEEE
114views Communications» more  ICC 2009»
15 years 4 months ago
Distributed Gradient Based Gain Allocation for Coherent Multiuser AF Relaying Networks
—A set of distributed non-cooperating relay antennas is known to be capable of orthogonalizing multiple sourcedestination pairs in space by coherent amplify-and-forward (AF) rela...
Celal Esli, Jörg Wagner, Armin Wittneben
CORR
2007
Springer
113views Education» more  CORR 2007»
14 years 9 months ago
Network Coding over a Noisy Relay : a Belief Propagation Approach
Abstract— In recent years, network coding has been investigated as a method to obtain improvements in wireless networks. A typical assumption of previous work is that relay nodes...
Sichao Yang, Ralf Koetter
CISS
2008
IEEE
15 years 4 months ago
On the achievable rates for the relay channels with generalized feedback
— In this paper, two different feedback configurations of the relay channel are investigated. Specifically, in our first configuration, the source node in a relay channel is ...
Jinhua Jiang, Yan Xin