Abstract
A new flexible multiple access control (MAC) scheme embedding channelization in multi-band carrier sense multiple access / collision avoidance (CSMA/CA) systems is proposed to provide different priority classes among users, and its performance is investigated. In the proposed scheme, two priority classes of users, primary and secondary users, are considered; the classical CSMA/CA protocol is modified to multi-band operation for secondary users, whereas channelization is provided for primary users to ensure the quality of service (QoS). The performance of the proposed MAC scheme is analyzed using a new multi-band CSMA/CA model based on a Markov chain capturing the primary user channel activity and the number of bands. The throughput of secondary users is obtained as a function of the primary user activity as well as other CSMA/CA parameters. It is shown that this mixed MAC scheme can guarantee the throughput of primary users certainly with minimal performance degradation to secondary users, especially when the number of available bands is large or the maximum contention window (CW) size for the CSMA/CA secondary users is small compared with the number of secondary users.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 |
| Publisher | Association for Computing Machinery (ACM) |
| Pages | 298-303 |
| Number of pages | 6 |
| ISBN (Print) | 9781605585697 |
| DOIs | |
| State | Published - 2009 |
| Externally published | Yes |
| Event | 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 - Leipzig, Germany Duration: 21 Jun 2009 → 24 Jun 2009 |
Publication series
| Name | Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing, Connecting the World Wirelessly, IWCMC 2009 |
|---|
Conference
| Conference | 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 |
|---|---|
| Country/Territory | Germany |
| City | Leipzig |
| Period | 21/06/09 → 24/06/09 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Cognitive radio
- CSMA/CA
- Multi-band
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