211 search results - page 10 / 43 » Dynamic Rate Allocation in Fading Multiple-access Channels |
TCOM
2010
13 years 6 months ago
2010
Abstract—This paper considers an uplink time division multiple access (TDMA) cognitive radio network where multiple cognitive radios (secondary users) attempt to access a spect...
TWC
2008
13 years 7 months ago
2008
In this paper, a decode-and-forward (DF) single relay model in a Rayleigh fading environment is considered. The outage probability and ergodic rate for this model are derived. With...
ETT
2002
13 years 7 months ago
2002
This paper deals with spreading sequences selection for downlink and uplink Multi-Carrier Code Division Multiple Access (MC-CDMA) systems with the aim of minimizing the dynamic ran...
VTC
2006
IEEE
14 years 1 months ago
2006
IEEE
Abstract— In a fading broadcast channel (BC), Queue Proportional Scheduling (QPS) is presented via geometric programming (GP). Given the current queue state, QPS allocates a data...
TIT
2010
13 years 2 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...