Name
Title | ||
|---|---|---|
Adaptive Multiuser OFDMA Systems with High Priority Users in the Presence of Imperfect CQI |
Abstract | ||
|---|---|---|
In this paper, an adaptive multiuser Orthogonal Frequency Division Multiple Access (OFDMA) system in the downlink is investigated which serves two sets of users differing in their priority regarding channel access. A Weighted Proportional Fair Scheduling (WPFS) approach is applied using instantaneous Channel Quality Information (CQI) and user priorities to allocate the different subcarriers to the different users. These CQI values are assumed to be imperfect due to time delays and estimation errors. The joint impact of imperfect CQI and user priority on the performance of the system is investigated analytically and assessed by numerical results. It appears that serving users with different priorities comes at the expense of reduced system data rate and less robustness against imperfect CQI. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1007/978-90-481-2530-2_23 | MCSS |
Field | DocType | Citations |
Weighted proportional fair,Imperfect,Scheduling (computing),Orthogonal frequency-division multiple access,Communication channel,Real-time computing,Robustness (computer science),Data rate,Engineering,Telecommunications link | Conference | 1 |
PageRank | References | Authors |
0.40 | 6 | 2 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Alexander Kühne | 1 | 11 | 1.38 |
| Anja Klein | 2 | 173 | 89.48 |