| Autor: |
Wu, Zhen Hua, Huang, Xiao Chuan, Shu, Jian |
| Zdroj: |
Advanced Materials Research; November 2011, Vol. 403 Issue: 1 p1950-1955, 6p |
| Abstrakt: |
Hidden terminal problem (HTP) has been a main research aspect in the field of wireless network performance analyzing and testing since it was formulated in 1970s. This article conducts a relatively comprehensive testing on the performance degradation of IEEE 802.15.4 network, which is beacon enabled, star architecture and using slotted CSMA/CA algorithm, due to HTP. All simulate experiments are conducted in NS-2. The experiment results show that: data generation form has little impact on HTP; packet length has more effect on HTP than the number of packets; HTP is trivial when network load is lower than 10%; acknowledge mechanism enlarges extremely HTP; increasing the value of beacon order (BO) is help for alleviating HTP when BO value is small than 6. These conclusions are useful for understanding the features of HTP in IEEE 802.15.4 networks. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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