Abstract | ||
---|---|---|
Wireless networks equipped with the CSMA protocol are subject to collisions due to interference. For a given interference range we investigate the tradeoff between collisions (hidden nodes) and unused capacity (exposed nodes). We show that the sensing range that maximizes throughput critically depends on the activation rate of nodes. For infinite line networks, we prove the existence of a threshold: When the activation rate is below this threshold the optimal sensing range is small (to maximize spatial reuse). When the activation rate is above the threshold the optimal sensing range is just large enough to preclude all collisions. Simulations suggest that this threshold policy extends to more complex linear and non-linear topologies. |
Year | DOI | Venue |
---|---|---|
2010 | 10.1145/1811039.1811060 | measurement and modeling of computer systems |
Keywords | DocType | Volume |
multi-access,csma protocol,threshold policy,exposed node,markov processes,carrier-sensing range,throughput,activation rate,optimal tradeoff,unused capacity,wireless networks,hidden node,interference range,hidden nodes,large wireless network,spatial reuse,exposed nodes,infinite line network,non-linear topology,markov process,wireless network | Conference | abs/1004.1058 |
Issue | ISSN | Citations |
1 | 0163-5999 | 6 |
PageRank | References | Authors |
0.47 | 14 | 3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Peter M. van de Ven | 1 | 52 | 8.23 |
Augustus J. E. M. Janssen | 2 | 77 | 12.57 |
J. S. Leeuwaarden | 3 | 183 | 19.57 |