1625 search results - page 82 / 325 » Achievable performance improvements provided by cooperative ... |
VTC
2006
IEEE
15 years 4 months ago
2006
IEEE
Abstract: In this paper, we study concatenated coding for MIMOOFDM systems. The proposed concatenated system achieves full spatial and frequency diversity at much lower complexity ...
JSAC
2011
14 years 4 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...
TSP
2008
14 years 9 months ago
2008
Polarization diversity has proved to be a useful tool for radar detection, especially when discrimination by Doppler effect is not possible. In this paper, we address the problem o...
CORR
2008
Springer
14 years 10 months ago
2008
Springer
We study the problem of dynamic spectrum sensing and access in cognitive radio systems as a partially observed Markov decision process (POMDP). A group of cognitive users cooperati...
EUROSYS
2009
ACM
15 years 7 months ago
2009
ACM
The backends of today’s Internet services rely heavily on caching at various layers both to provide faster service to common requests and to reduce load on back-end components. ...