ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
A weighted sum-rate maximization problem is considered for an access point (AP) allocating resources to wireless cognitive radios (CRs) communicating using orthogonal frequency-di...
TWC
2008
13 years 7 months ago
2008
Emerging applications involving low-cost wireless sensor networks motivate well optimization of multi-user orthogonal frequency-division multiple access (OFDMA) in the power-limite...
GLOBECOM
2008
IEEE
13 years 8 months ago
2008
IEEE
Abstract— In this paper, we evaluate the performance improvement in an Orthogonal Frequency-Division Multiple Access (OFDMA) uplink achievable with cooperative relaying in the pr...
ESA
2009
Springer
14 years 2 months ago
2009
Springer
In this paper, we study the complexity and approximability of the orthogonal frequency-division multiple access (OFDMA) scheduling problem with uniformly related communication chan...