Name
Title | ||
|---|---|---|
WIRELESS BROADBAND ACCESS: WIMAX AND BEYOND - Investigation of Bandwidth Request Mechanisms under Point-to-Multipoint Mode of WiMAX Networks |
Abstract | ||
|---|---|---|
The WiMAX standard specifies a metropolitan area broadband wireless access air interface. In order to support QoS for multimedia applications, various bandwidth request and scheduling mechanisms are suggested in WiMAX, in which a subscriber station can send request messages to a base station, and the base station can grant or reject the request according to the available radio resources. This article first compares two fundamental bandwidth request mechanisms specified in the standard, random access vs. polling under the point-to-multipoint mode, a mandatory transmission mode. Our results demonstrate that random access outperforms polling when the request rate is low. However, its performance degrades significantly when the channel is congested. Adaptive switching between random access and polling according to load can improve system performance. We also investigate the impact of channel noise on the random access request mechanism |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1109/MCOM.2007.358860 | IEEE Communications Magazine |
Keywords | Field | DocType |
base station,wimax networks,telecommunication switching,access air interface,scheduling,wimax,bandwidth request mechanisms,radiofrequency interference,metropolitan area broadband wireless access air interface,radio access networks,request message,quality of service,scheduling mechanisms,ransom access bandwidth request mechanisms,computer network management,multimedia applications,request rate,random access request mechanism,wimax standard,broadband networks,adaptive switching,wireless channels,qos,various bandwidth request,random access,fundamental bandwidth request mechanism,channel noise,subscriber station,wireless broadband access,multimedia communication,point-to-multipoint mode,resource management,scheduling algorithm,bandwidth,communication systems,telecommunications,algorithm design and analysis | Base station,Point-to-multipoint communication,Wireless broadband,Computer science,Computer network,Polling,Real-time computing,WiMAX,Broadband networks,Air interface,Random access | Journal |
Volume | Issue | ISSN |
45 | 5 | 0163-6804 |
Citations | PageRank | References |
45 | 4.05 | 2 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Qiang Ni | 1 | 547 | 43.07 |
| Alexey Vinel | 2 | 1361 | 119.42 |
| Yang Xiao | 3 | 6317 | 456.36 |
| A. Turlikov | 4 | 45 | 4.05 |
| Tao Jiang | 5 | 2543 | 230.12 |