Abstract
This paper presents a medium access level VBR bandwidth allocation scheme for wireless ATM (WATM) networks. After introducing a wireless ATM system model and the associated dynamic TDMA/TDD medium access control (MAC) scheme, an algorithm for VBR slot allocation is proposed. The algorithm combines information from User Parameter Control (UPC) at the call admission control (CAC) level with rapid MAC level estimates of the requirements for each VBR virtual circuit (VC). The method described is applicable to both conventional VBR and recently proposed VBR+ in which UPC parameters are dynamically renegotiated as source bit rate requirements vary. Simulation experiments using statistically multiplexed MPEG-1 video are carried out for a typical 25 Mbps dynamic TDMA/TDD wireless ATM access link scenario. Experimental results show that, for the VBR video under consideration, the proposed scheme can achieve throughputs in the range of 60-70% while maintaining reasonable QoS.
| Original language | English (US) |
|---|---|
| Pages | 1073-1079 |
| Number of pages | 7 |
| State | Published - 1997 |
| Externally published | Yes |
| Event | Proceedings of the 1997 IEEE International Conference on Communications, ICC. Part 3 (of 3) - Montreal, Can Duration: Jun 8 1997 → Jun 12 1997 |
Other
| Other | Proceedings of the 1997 IEEE International Conference on Communications, ICC. Part 3 (of 3) |
|---|---|
| City | Montreal, Can |
| Period | 6/8/97 → 6/12/97 |
All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Electrical and Electronic Engineering