Name
Abstract | ||
|---|---|---|
The expected VoIP call capacity in a one hop IEEE 802.11b network with G.711 voice codec is about 85 simultaneous calls, but the actual observed capacity is only 5 calls even at the highest data rate and under zero loss conditions. In this paper we analyze the reasons behind this inferior performance of VoIP traffic. We also present algorithms at the medium access control layer to improve the observed call capacity. Using ns-2 based simulations, we evaluate the algorithms and show that performance improvements of more than 300% can be achieved. Finally, using a testbed implementation of one of the proposed algorithms, we show its feasibilty in real world VoIP implementations. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1007/s11036-009-0157-6 | MONET |
Keywords | Field | DocType |
VoIP,Wi-Fi networks,call capacity,ACK aggregation,frame aggregation,link adaptation | Link adaptation,Computer science,Testbed,Computer network,Algorithm,Real-time computing,Implementation,Frame aggregation,Access control,Data rate,Acceleration,Voice over IP | Journal |
Volume | Issue | ISSN |
14 | 4 | 1383-469X |
Citations | PageRank | References |
3 | 0.51 | 12 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yeonsik Jeong | 1 | 55 | 5.94 |
| Sandeep Kakumanu | 2 | 95 | 7.80 |
| Cheng-Lin Tsao | 3 | 132 | 9.97 |
| Raghupathy Sivakumar | 4 | 2679 | 340.00 |