Name
Abstract | ||
|---|---|---|
In emergency situations such as a disaster and a blackout, machine nodes should report emergency alarms, including the disaster type and disaster area to an M2M server. When many related machine nodes attempt a random access (RA) to report emergency alarms, and this may cause a physical random access channel (PRACH) overload. In this case, the machine nodes hardly access the network within a given delay requirement of emergency alarms. In this paper, we propose a novel random access scheme based on a special preamble for emergency indication in an emergency situation and adaptively reserve more PRACH resources in proportion to the number of machine nodes using the special preamble. The proposed RA scheme outperforms the conventional RA scheme in terms of access delay and can accommodate much more machine nodes in emergency situations, compared with the conventional RA scheme. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/WCNC.2014.6952517 | WCNC |
Keywords | Field | DocType |
random access scheme,machine node,disaster area,access delay,machine-to-machine server,physical random access channel overload,cellular radio,emergency situation,machine-to-machine,alarm systems,emergency alarm supporting,emergency management,ra scheme,special preamble,cellular network,wireless channels,random access,emergency,prach overload,preamble,m2m server,radiation detectors,probability,machine to machine,optimization,vectors | Machine to machine,Random-access channel,Preamble,Computer science,Emergency management,Computer network,Real-time computing,Cellular network,Blackout,Disaster area,Random access | Conference |
ISSN | Citations | PageRank |
1525-3511 | 6 | 0.56 |
References | Authors | |
3 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Taehoon Kim | 1 | 43 | 7.51 |
| Kab Seok Ko | 2 | 77 | 8.55 |
| Inkyu Bang | 3 | 25 | 7.78 |
| Dan Keun Sung | 4 | 1478 | 147.84 |