Title :
Enhancing delay and data-loss performance in wireless traffic control
Author_Institution :
Dipt. di Inf. e Sistemistica, Rome Univ., Italy
Abstract :
This paper deals with efficient exploitation of resources in wireless IP networks. In the wireless context specifically, making optimal use of the scarce bandwidth has led into engineering wireless compensation mechanisms incorporated in the scheduling process, i.e. channel state dependent (CSD) packet scheduling, as a powerful approach to maximize wireless link utilization. In the literature, the most widely known wireless traffic control solutions are based on fair queuing and hierarchical link-sharing. We propose a wireless traffic control architecture based on dynamically adjusting traffic shaping and earliest deadline scheduling adapted to the wireless context with a CSD packet scheduling approach. Opnet simulations show how this alternative architecture outperforms a well-known fair queuing algorithm, i.e. WFS, on the basis of delay and data-loss metrics and appears particularly effective in traffic control in the presence of little knowledge of flow statistical profiles.
Keywords :
IP networks; packet radio networks; quality of service; telecommunication congestion control; CSD packet scheduling; QoS provisioning; bandwidth allocation; channel state dependent packet scheduling; congestion efficiency; data-loss performance; delay control; earliest deadline scheduling; network resource exploitation; real-time traffic support; traffic shaping dynamic adjustment; wireless IP networks; wireless compensation mechanisms; wireless traffic control; Bandwidth; Capacity planning; Channel allocation; Communication system traffic control; Delay; Propagation losses; Scheduling algorithm; Telecommunication control; Throughput; Traffic control;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1391399