| Author Name | Affiliation | | ZHANG Wen-bin | Communication Research Center, Harbin Institute of Technology, Harbin 150001, China | | Zhang Wen Bing | Communication Research Center, Harbin Institute of Technology, Harbin 150001, China | | Qiang Wei | Communication Research Center, Harbin Institute of Technology, Harbin 150001, China | | Zhang Nan | Communication Research Center, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: |
| To deal with hidden nodes in ad hoc network, we take throughput as the metric to evaluate the performance of network. Firstly, we modeled the MAC layer of ad hoc network based on 802.11 DCF without the existence of hidden nodes. By means of the proposed model, we evaluated the throughput performance of DCF in multi-hop wireless networks. Secondly, we performed simulations to validate this model. The outcome of comparison is that there exists much difference in throughput between the model and the simulation. For reducing this difference, we modified the model by involving hidden nodes under the condition that the AODV route protocol was chosen, and analytically analyzed the influence of hidden nodes on theoretical throughput. At last, we validated the accuracy of this model by comparing the analytical results with simulation results. |
| Key words: ad hoc networks 802.11 DCF model throughput |
| DOI：10.11916/j.issn.1005-9113.2009.01.014 |
| Clc Number:TN929.5 |
| Fund: |
