476 search results - page 57 / 96 » The Relay Channel with a Wire-tapper |
ICC
2007
IEEE
15 years 4 months ago
2007
IEEE
— This paper considers a fading relay channel where the total transmit power used is constrained to be equal to that of the standard single-hop channel. The relay channel used op...
CORR
2007
Springer
14 years 9 months ago
2007
Springer
Abstract— Infrastructure based wireless communications systems as well as ad hoc networks experience a growing importance in present-day telecommunications. An increased density ...
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TWC
2008
14 years 9 months ago
2008
In order to adapt to time-varying wireless channels, various channel-adaptive schemes have been proposed to exploit inherent spatial diversity in mobile/wireless ad hoc networks w...
SECON
2007
IEEE
15 years 4 months ago
2007
IEEE
— Multiuser diversity is a phenomenon caused by channel variations among different users in a wireless network. Cooperative relaying provides another form of diversity due to the...
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
We consider the problem of minimizing the cost of the power required to achieve a specified level of quality-of-service (QoS) on a point-to-point link that may be assisted by an ...