Path Capacity Estimation in Time-slotted Wireless Networks
Date Issued
2007
Date
2007
Author(s)
Sung, Chih-Wei
DOI
en-US
Abstract
Knowing the end-to-end path capacity is important for network and applications management. Although path capacity estimation in wired and wireless networks have been extensively investigated, but an effective estimate of path capacity in time-slotted wireless networks is still lacking. With the increasing popularity of time-slotted wireless technologies (e.g. Bluetooth, ZigBee, WiMAX), the effective utilization of the wireless channel remain challenging for all wireless applications due to special property of them in the data link layer. In this thesis, we propose a new capacity estimation technique, TSProbe, to estimate end-to-end path capacity in time-slotted wireless systems. TSProbe is inspired by AdHoc Probe, and it deploys an adaptive and iterative probing scheme based on the intrinsic relationships between various link layer properties for time-slotted connections. With analysis, we found the effective link capacity is dependent on the employed packet size. Moreover, we exhibit a theoretical basis and propose an efficient approach for TSProbe, and evaluated its performance in a variety of simulation scenarios. Finally, we further evaluated its reliability in testbed and Internet experiment scenarios for estimating a path capacity. The results present that TSProbe is consistently accurate, effective and reliable in all cases.
Subjects
時槽式無線網路
頻寬評估
capacity estimation
time-slotted wireless networks
Type
thesis
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