Name
Abstract | ||
|---|---|---|
In dense IEEE 802.11 networks, improving the efficiency of contention-based media access control is an important and challenging issue. Recently, the IEEE802.11ah Task Group has discussed a group-synchronized distributed coordination function (GS-DCF) for densely deployed wireless networks with a large number of stations. By using the restricted access window (RAW) and RAW slots, the GS-DCF is anticipated to improve the throughput substantially, primarily due to relieving the channel contention. However, optimizing the MAC configurations for the RAW, i.e., the number and duration of RAW slots, is still an open issue. In this paper, we first build an analytical model to track the performance of the GS-DCF in saturated 802.11 networks. Then, we study and compare the GS-DCF throughput using both centralized and decentralized grouping schemes. The accuracy of our model has been validated with simulation results. It is observed that the GS-DCF obtains a throughput gain of seven times or more over DCF in a network of 512 or more stations. Moreover, it is demonstrated that the decentralized grouping scheme can be implemented with a small throughput loss when compared with the centralized grouping scheme. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/TWC.2014.2337315 | IEEE Transactions on Wireless Communications |
Keywords | Field | DocType |
centralized/decentralized grouping scheme,edca,group-synchronized distributed coordination function,telecommunication standards,gs-dcf,restricted access window (raw),raw,restricted access window,contention-based media access control,wireless networks,group-synchronized distributed coordination function (gs-dcf),channel allocation,ieee802.11ah task group,dense networks,channel contention,group-synchronized dcf,ieee 802.11 networks,ieee 802.11ah,grouping schemes,saturated throughput,group theory,access control,radiation detectors,wireless communication,throughput,power control | Network allocation vector,Media access control,IEEE 802.11,Computer science,IEEE 802.11ah,Computer network,Real-time computing,Wireless Multimedia Extensions,Distributed coordination function,IEEE 802,Throughput | Journal |
Volume | Issue | ISSN |
13 | 11 | 1536-1276 |
Citations | PageRank | References |
21 | 1.57 | 24 |
Authors | ||
6 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Lei Zheng | 1 | 71 | 6.97 |
| Minming Ni | 2 | 165 | 21.08 |
| lin x cai | 3 | 2956 | 220.61 |
| Jianping Pan | 4 | 1760 | 150.21 |
| Chittabrata Ghosh | 5 | 286 | 19.57 |
| Klaus Doppler | 6 | 1723 | 153.67 |