14774 search results - page 2948 / 2955 » Computational complexity and evolutionary computation |
131
Voted
TCOM
2010
14 years 10 months ago
2010
Joint carrier frequency offset (CFO) and channel estimation for uplink MIMO-OFDMA systems over time-varying channels is investigated. To cope with the prohibitive computational co...
131
Voted
TIT
2010
14 years 10 months ago
2010
We consider the problem of rate and power allocation in a multiple-access channel. Our objective is to obtain rate and power allocation policies that maximize a general concave ut...
159
Voted
TMM
2010
14 years 10 months ago
2010
Traditionally, video acquisition, coding and analysis have been designed and optimized as independent tasks. This has a negative impact in terms of consumed resources, as most of ...
182
Voted
TPDS
2010
14 years 10 months ago
2010
Predicting grid performance is a complex task because heterogeneous resource nodes are involved in a distributed environment. Long execution workload on a grid is even harder to pr...
159
Voted
TSP
2010
14 years 10 months ago
2010
Effective spectrum sensing is a critical prerequisite for multi-channel cognitive radio (CR) networks, where multiple spectrum bands are sensed to identify transmission opportuniti...