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PIMRC
2008
IEEE
14 years 5 months ago
Multiuser MIMO two-way relaying for cellular communications
Abstract— Two-way relaying, which enables bidirectional simultaneous data transmission between two nodes, is an efficient means to reduce the spectral efficiency loss observed ...
Celal Esli, Armin Wittneben
GLOBECOM
2007
IEEE
14 years 5 months ago
Designing Infrastructure-Based Overlay Networks for Delay-Sensitive Group Communications
— Infrastructure-based overlay networks have been proposed to support the quality of service requirements of a wide range of applications. In this paper, we study using infrastru...
Shaoyu Yang, Yoo-Ah Kim, Bing Wang
GLOBECOM
2006
IEEE
14 years 4 months ago
Relay Selection in Multi-Node Cooperative Communications: When to Cooperate and Whom to Cooperate with?
Abstract— In this paper, we propose a new cooperative communication protocol, which achieves high bandwidth efficiency while guaranteeing full diversity order. The proposed sche...
Ahmed S. Ibrahim, Ahmed K. Sadek, Weifeng Su, K. J...
INFOCOM
2006
IEEE
14 years 4 months ago
Resource Allocation for Multicast Services in Multicarrier Wireless Communications
— We consider a multicast resource allocation problem for the downlink in OFDM-based wireless cellular network systems. In a conventional multicast system, to accommodate users w...
Changho Suh, Jeonghoon Mo
ICN
2005
Springer
14 years 4 months ago
On the Security of Cluster-Based Communication Protocols for Wireless Sensor Networks
Wireless sensor networks are ad hoc networks comprised mainly of small sensor nodes with limited resources, and are rapidly emerging as a technology for large-scale, lowcost, autom...
Adrian Carlos Ferreira, Marcos Aurélio Vila...