319 search results - page 3 / 64 » Design and analysis of an IEEE 802.16e-based OFDMA communica... |
VTC
2007
IEEE
14 years 1 months ago
2007
IEEE
— We address the problem of radio resource allocation in the Downlink (DL) of a cellular system with Relay Stations (RS), based on Orthogonal Frequency Division Multiple Access (...
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
— The main task in OFDM downlink scheduling design is to maximize some kind of utility considering user specific as well as system induced constraints. A typical example is the ...
GLOBECOM
2007
IEEE
13 years 9 months ago
2007
IEEE
: The improvement of spectral efficiency comes at the cost of exponential increment of signal processing complexity [1]. Hence, the energy-efficiency of baseband has recently turne...
IWCMC
2009
ACM
14 years 2 months ago
2009
ACM
In wireless communication systems, adaptive modulation and coding (AMC) is used to improve the downlink (DL) spectral efficiency by exploiting the underlying channel condition. Ho...
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
Abstract— A distributed medium access control (MAC) algorithm for uplink OFDMA networks under the IEEE 802.16 framework is proposed and analyzed in this work. We present a simple...