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Adaptive Dynamic Slot Assignment of VBR Traffics Using In-band Parameters in Wireless ATM  

Paek, Jong-Il (Samsung SDS inc.)
Jun, Chan-Yong (Department of Electronics & Computer Engineering, Chonnam national University)
Kim, Young-Chul (Department of Electronics & Computer Engineering, Chonnam national University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.39, no.7, 2002 , pp. 30-37 More about this Journal
Abstract
In this paper, we propose a new adaptive slot assignment algorithm called In-VDSA in order to guarantee the QoS(Quality of Service) of VBR(Variable Bit Rate) traffics in wireless ATM and maximize efficiency in use of wireless channels. In the proposed algorithm, the status of terminal buffers is encoded in signed number on the GFC(Generic Flow Control) field of an ATM cell header and piggybacked. And also, the number of slots to be assigned to the next frame is adjusted effectively, which is different to methods in the conventional slot assignment algorithms. As a result, we can guarantee QoS such as CLR(Cell Loss Rate) and cell delay and achieve the higher utilization of channels. The validity of the proposed algorithm has been justified in performance by analysis through simulation results using the BONeS tool and comparison with conventional methods.
Keywords
Wireless ATM; Dynamic Slot Assignment; DSA; In-band; VBR Traffic; In-VDSA(In-band VBR Dynamic Slot Assignment);
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