Sciweavers

476 search results - page 34 / 96
» The Relay Channel with a Wire-tapper
Sort
View
70
Voted
WCNC
2010
IEEE
15 years 1 months ago
Hierarchical Alphabet and Parametric Channel Constrained Capacity Regions for HDF Strategy in Parametric Wireless 2-WRC
Abstract—The paper addresses wireless the 2-Way Relay Channel (2-WRC) system with a Hierarchical Decode and Forward strategy. This strategy uses a Hierarchical eXclusive Code (HX...
Jan Sykora, Alister G. Burr
VTC
2008
IEEE
15 years 4 months ago
BER Minimization in Relay-Assisted OFDM Systems by Subcarrier Permutation
—We consider relay-assisted communications from a source to a destination based on OFDM. The relay performs subcarrier permutation by exploiting full channel state information (C...
Chin Keong Ho, Ashish Pandharipande
68
Voted
GLOBECOM
2007
IEEE
15 years 4 months ago
Opportunistic Relaying in Cellular Network for Capacity and Fairness Improvement
— In this paper, we study how the cooperative relaying can improve both capacity and fairness in cellular network. The capacity and fairness have a trade-off relationship, so inc...
Seungho Song, Kyuho Son, Hyang-Won Lee, Song Chong
CISS
2008
IEEE
14 years 11 months ago
An efficient adaptive distributed space time coding scheme for cooperative relaying
A non-regenerative dual-hop wireless system based on distributed Alamouti space-time coding is considered. It is assumed that each relay retransmits an appropriately scaled space-t...
Jamshid Abouei, Hossein Bagheri, Amir K. Khandani
89
Voted
GLOBECOM
2008
IEEE
14 years 10 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