Name
Abstract | ||
|---|---|---|
Wireless ad-hoc networks are based on shared medium technology where the nodes arrange access to the medium in a distributed way independent of their current traffic demand. This has the inherent drawback that a node that serves as a relay node for transmissions of multiple neighboring nodes is prone to become a performance "bottleneck". In the present paper such a bottleneck node is modeled via an idealized fluid-flow queueing model in which the complex packet-level behavior (MAC) is represented by a small set of parameters. We extensively validate the model by ad-hoc network simulations that include all the details of the widely used IEEE 802.11 MAC-protocol. Further we show that the overall flow transfer time of a multi-hop flow, which consists of the sum of the delays at the individual nodes, improves by granting a larger share of the medium capacity to the bottleneck node. Such alternative resource sharing strategies can be enforced in real systems by deploying the recently standardized IEEE 802.11E MAC-protocol. We propose a mapping between the parameter settings of IEEE 802.11E and the fluid-flow model, and validate the fluid-flow model and the parameter mapping with detailed system simulations. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1007/978-3-540-72990-7_31 | International Teletraffic Congress |
Keywords | Field | DocType |
multiple neighboring node,ad-hoc network simulation,bottleneck node,wireless ad-hoc network,standardized ieee,shared medium technology,idealized fluid-flow,fluid-flow modeling,multi-hop flow,individual node,medium capacity,fluid-flow model,ad hoc network,resource sharing,wireless ad hoc network,fluid flow,mathematical models,computer simulation,ad hoc networks | Shared medium,Network allocation vector,Bottleneck,IEEE 802.11,Inter-Access Point Protocol,Computer science,Computer network,Queueing theory,Wireless ad hoc network,Relay,Distributed computing | Conference |
Volume | ISSN | Citations |
4516 | 0302-9743 | 2 |
PageRank | References | Authors |
0.41 | 9 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Frank Roijers | 1 | 47 | 5.45 |
| Hans van den Berg | 2 | 169 | 25.01 |
| Michel Mandjes | 3 | 534 | 73.65 |