107 search results - page 10 / 22 » Diversity-Multiplexing Tradeoff in Cooperative Multiple Acce... |
JSAC
2011
13 years 2 months ago
2011
—In this paper, opportunistic multiple access to the under-utilized channel resources is investigated. Exploiting source burstiness, secondary cognitive nodes utilizes primary no...
GLOBECOM
2008
IEEE
14 years 2 months ago
2008
IEEE
— We consider a relay that simultaneously assists multiple source-destination pairs that do not have a direct link, the so-called gateway channel, and explore the sum capacity of...
CORR
2006
Springer
13 years 7 months ago
2006
Springer
We consider the General Gaussian Multiple Access Wire-Tap Channel (GGMAC-WT). In this scenario, multiple users communicate with an intended receiver in the presence of an intellige...
TWC
2010
13 years 2 months ago
2010
Cooperative forwarding in wireless networks has shown to yield rate and diversity gains, but it incurs energy costs borne by the cooperating nodes. In this paper we consider an inc...
CORR
2006
Springer
13 years 7 months ago
2006
Springer
For a fading Gaussian multiple access channel with user cooperation, we obtain the optimal power allocation policies that maximize the rates achievable by block Markov superpositi...