Abstract
WiMedia MAC is an attractive transmission technology for high rate multimedia streaming and high quality consumer electronic devices in wireless personal area networks. In this paper, we propose a deterministic channel access (DCA), where all the devices determine their transmission orders in a distributed manner by exchanging beacon frames in the beacon period. Since all of the devices follow a deterministic transmission order, collision-free channel access can be achieved and thus the throughput can be significantly improved. In addition, the DCA addresses unfairness problems found in channel access by using circulating reference points. The tracedriven simulation results demonstrate that the DCA outperforms the existing channel access schemes in WiMedia MAC under different situations, especially under bursty traffic.
| Original language | English |
|---|---|
| Pages (from-to) | 771-785 |
| Number of pages | 15 |
| Journal | Wireless Networks |
| Volume | 18 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2012 Oct |
Bibliographical note
Funding Information:Acknowledgments This research was supported by the KCC, Korea, under the R&D program supervised by the KCA (KCA-2011-08913-04002) and in part by WCU Project (R33-2008-000-10044-0) through the NRF funded by the MEST, Korea.
Keywords
- Collision-free channel access
- Deterministic transmission
- Multimedia traffic
- WiMedia MAC
- Wireless personal area networks
ASJC Scopus subject areas
- Information Systems
- Computer Networks and Communications
- Electrical and Electronic Engineering