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WCNC
2010
IEEE
13 years 8 months ago
Distortion Exponents for Multi-Relay Cooperative Networks with Limited Feedback
— In this paper, we consider the transmission of a Gaussian source in a multi-relay cooperative network, where limited channel state feedback is combined with separate source and...
Jing Wang, Jie Liang, Sami Muhaidat
ICASSP
2011
IEEE
12 years 8 months ago
How much feedback overhead is required for base station cooperative transmission to outperform non-cooperative transmission?
Coherent base station (BS) cooperative transmission provides high spectrum efficiency for cellular systems when channel state information (CSI) is perfectly known at the BSs. For...
Xueying Hou, Chenyang Yang
ICASSP
2011
IEEE
12 years 8 months ago
Distributed beamforming for OFDM-based cooperative relay networks under total and per-relay power constraints
This paper addresses the problem of beamforming (BF) design for orthogonal frequency division multiplexing (OFDM) based relay networks over frequency-selective channels. Both freq...
Wenjing Cheng, Qinfei Huang, Mounir Ghogho, Dongta...
GLOBECOM
2008
IEEE
13 years 5 months ago
Perturbation-Based Distributed Beamforming for Wireless Relay Networks
—This paper deals with distributed beamforming techniques for wireless networks with half-duplex amplify-andforward relays. Existing schemes optimize the beamforming weights base...
Peter Fertl, Ari Hottinen, Gerald Matz
TWC
2011
245views more  TWC 2011»
12 years 11 months ago
Cooperative Filter-and-Forward Beamforming for Frequency-Selective Channels with Equalization
Most of the existing literature on cooperative relay networks has focused on frequency– nonselective channels or frequency–selective channels with multi–carrier transmission...
Yang-wen Liang, Aïssa Ikhlef, Wolfgang H. Ger...