Queue Analysis and Multiplexing of Heavy-tailed Traffic in Wireless Packet Data Networks |
| |
Authors: | Shahram Teymori Weihua Zhuang |
| |
Affiliation: | (1) Automation Systems Division, ATS Automation Tooling Systems Inc., 250 Royal Oak Rd., Cambridge, Ontario, Canada, N3H 4R6;(2) Centre for Wireless Communications (CWC), Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Ontario, Canada, N2L 3G1 |
| |
Abstract: | Recent research based on traffic measurements shows that Internet traffic flows have a fractal nature (i.e., self-similarity
property), which causes an underestimation of network engineering parameters when using the conventional Poisson model. Preliminary
field measurements demonstrate that packet data traffic in wireless communications also exhibits self-similarity. In this
paper, we investigate the queuing behavior of self-similar traffic flows for data applications in a packet-switching single-server
wireless network. The traffic is generated by an on–off source with heavy-tailed on periods and exponentially distributed
off periods. We extend previous analysis of a relation among the asymptotic distribution of loss probability, traffic specifications,
and transmission rate for a wireline system to a wireless system, taking into account wireless propagation channel characteristics.
We also investigate the multiplexing of heavy-tailed traffic flows with a finite buffer for the downlink transmission of a
wireless network. Computer simulation results demonstrate that assumptions made in the theoretical analysis are reasonable
and the derived relationships are accurate. |
| |
Keywords: | delay heavy-tailed traffic loss probability quality-of-service (QoS) queueing analysis resource allocation self-similarity statistical multiplexing wireless packet transmission |
本文献已被 SpringerLink 等数据库收录! |
|