172 search results - page 4 / 35 » Joint Optimization of Power Allocation and Relay Deployment ... |
ICC
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract—Optimal power allocation for multi-user amplifyand-forward wireless relay networks in which multiple sourcedestination pairs are assisted by a set of relays is investiga...
MOBIHOC
2005
ACM
14 years 7 months ago
2005
ACM
We consider a wireless sensor network in which sensors are grouped into clusters, each with its own cluster head (CH). Each CH collects data from sensors in its cluster and relays...
GLOBECOM
2008
IEEE
14 years 1 months ago
2008
IEEE
—1 In this paper, we consider an amplify-and-forward (AF) wireless relay system where multiple source nodes communicate with their corresponding destination nodes with the help o...
SECON
2007
IEEE
14 years 1 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...
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
Abstract— Enhancing the connectivity of wireless sensor networks is necessary to avoid the occurrence of coverage gaps. In this paper, we aim at improving the network connectivit...