Abstract
Adaptive Modulation and Coding (AMC) is one of key
technologies in 4G system. Band AMC technique enables the
Orthogonal Frequency-Division Multiple Access (OFDMA)
system to achieve their maximum throughput by efficient
utilization of wireless channel characteristics. Band AMC
with the adjacent subcarrier allocation specified in 4G
system (Worldwide Interoperability for Microwave Access
(WiMAX) standard) can use maximum 5 best bands no matter
of channel conditions. Therefore Band AMC is used only
when channel condition is good. If channel condition
turns to bad, Band AMC is not used and changes the mode
to Partial Usage of SubChannels (PUSC) or Full Usage of
SubChannels (FUSC). In this paper, Band AMC algorithm
with dynamic band selection are proposed, which is
controlled by wireless channel conditions and is
allocated to the different number of bands. Their
performances are investigated. Simulation results show
that the proposed Band AMC algorithm allows to about 20%
throughput improvement as compared to the legacy band AMC
algorithm defined in WiMAX standard.
| Original language | English |
|---|---|
| Title of host publication | Proceedings |
| Subtitle of host publication | International Symposium on Wireless Personal Multimedia Communications, WPMC 2014 |
| Publisher | IEEE Institute of Electrical and Electronic Engineers |
| Pages | 249-252 |
| ISBN (Print) | 978-986033407-4 |
| DOIs | |
| Publication status | Published - 2014 |
| MoE publication type | A4 Article in a conference publication |
| Event | 17th International Symposium on Wireless Personal Multimedia Communications, WPMC 2014 - Sydney, Australia Duration: 7 Sept 2014 → 10 Sept 2014 |
Conference
| Conference | 17th International Symposium on Wireless Personal Multimedia Communications, WPMC 2014 |
|---|---|
| Abbreviated title | WPMC 2014 |
| Country/Territory | Australia |
| City | Sydney |
| Period | 7/09/14 → 10/09/14 |
Keywords
- band AMC
- OFDMA
- performance evaluation
- resource allocation
- WiMAX