Name
Title | ||
|---|---|---|
Modeling the flow-level performance of hierarchical modulation in OFDMA-based networks |
Abstract | ||
|---|---|---|
Hierarchical Modulation (HM) is a means to enhance the spectral efficiency of a system by superposing, in terms of modulation,
an additional stream for a given user with good radio conditions on a basic stream of a user with worse radio conditions.
This, in turn, increases the throughput of the former user and hence the overall performance of the whole system. We consider,
in this work, such a performance at the flow level, for a realistic dynamic setting where users come to the system and leave
it after a finite duration corresponding, for instance, to the completion of a file transfer. We specifically model and quantify,
both analytically and via simulations, the gain thus achieved and propose two extensions to the basic HM algorithm: a first
one in which a user with bad radio conditions is also superposed on one with better radio conditions and a second one in which
a user of one type is further superposed on a user of the same type as well. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1007/s11235-010-9398-8 | Telecommunication Systems |
Keywords | Field | DocType |
Hierarchical modulation,OFDMA,Flow-level performance,Round Robin | Computer science,Flow (psychology),Computer network,Real-time computing,Modulation,Spectral efficiency,File transfer,Throughput,Hierarchical modulation | Journal |
Volume | Issue | ISSN |
50 | 3 | 1018-4864 |
Citations | PageRank | References |
1 | 0.36 | 9 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Anis Jdidi | 1 | 14 | 1.42 |
| Tijani Chahed | 2 | 373 | 53.98 |
| Salah Eddine Elayoubi | 3 | 56 | 5.58 |
| Hichem Besbes | 4 | 80 | 22.41 |