Abstract
In wireless personal area network, a channel is shared by a number of nodes. Therefore packet collision may take place and it degrades the throughput performance. To improve the throughput of slotted CSMA/CA in IEEE 802.15.4, we propose knowledge-based exponential backoff (KEB) scheme for enhancing channel utilization solely based on the locally available channel state information. In addition, we propose an analytical model of slotted channel access mechanism with finite retry and derive the theoretical throughput limit. In simulation experiments, we show that the existing MAC scheme, binary exponential backoff (BEB) scheme, operates very far from the theoretical limits due to increased time for negotiating channel access. Also performance results indicate that KEB shows significant improvement in throughput performance over BEB with the knowledge of the network status.
| Original language | English |
|---|---|
| Title of host publication | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
| Pages | 435-444 |
| Number of pages | 10 |
| Volume | 5200 LNCS |
| DOIs | |
| Publication status | Published - 2008 Dec 31 |
| Event | 21st International Conference on Information Networking, ICOIN 2007 - Estoril, Portugal Duration: 2007 Jan 23 → 2007 Jan 25 |
Publication series
| Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
|---|---|
| Volume | 5200 LNCS |
| ISSN (Print) | 03029743 |
| ISSN (Electronic) | 16113349 |
Other
| Other | 21st International Conference on Information Networking, ICOIN 2007 |
|---|---|
| Country | Portugal |
| City | Estoril |
| Period | 07/1/23 → 07/1/25 |
Fingerprint
Keywords
- Backoff
- IEEE 802.15.4
- MAC
- Markov model
- Throughput
ASJC Scopus subject areas
- Computer Science(all)
- Theoretical Computer Science
Cite this
Knowledge-based exponential backoff scheme in IEEE 802.15.4 MAC. / Woo, Sinam; Park, Woojin; Ahn, Sae Young; An, Sun-Shin; Kim, Dongho.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 5200 LNCS 2008. p. 435-444 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 5200 LNCS).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Knowledge-based exponential backoff scheme in IEEE 802.15.4 MAC
AU - Woo, Sinam
AU - Park, Woojin
AU - Ahn, Sae Young
AU - An, Sun-Shin
AU - Kim, Dongho
PY - 2008/12/31
Y1 - 2008/12/31
N2 - In wireless personal area network, a channel is shared by a number of nodes. Therefore packet collision may take place and it degrades the throughput performance. To improve the throughput of slotted CSMA/CA in IEEE 802.15.4, we propose knowledge-based exponential backoff (KEB) scheme for enhancing channel utilization solely based on the locally available channel state information. In addition, we propose an analytical model of slotted channel access mechanism with finite retry and derive the theoretical throughput limit. In simulation experiments, we show that the existing MAC scheme, binary exponential backoff (BEB) scheme, operates very far from the theoretical limits due to increased time for negotiating channel access. Also performance results indicate that KEB shows significant improvement in throughput performance over BEB with the knowledge of the network status.
AB - In wireless personal area network, a channel is shared by a number of nodes. Therefore packet collision may take place and it degrades the throughput performance. To improve the throughput of slotted CSMA/CA in IEEE 802.15.4, we propose knowledge-based exponential backoff (KEB) scheme for enhancing channel utilization solely based on the locally available channel state information. In addition, we propose an analytical model of slotted channel access mechanism with finite retry and derive the theoretical throughput limit. In simulation experiments, we show that the existing MAC scheme, binary exponential backoff (BEB) scheme, operates very far from the theoretical limits due to increased time for negotiating channel access. Also performance results indicate that KEB shows significant improvement in throughput performance over BEB with the knowledge of the network status.
KW - Backoff
KW - IEEE 802.15.4
KW - MAC
KW - Markov model
KW - Throughput
UR - http://www.scopus.com/inward/record.url?scp=58049108693&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=58049108693&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-89524-4-44
DO - 10.1007/978-3-540-89524-4-44
M3 - Conference contribution
AN - SCOPUS:58049108693
SN - 354089523X
SN - 9783540895237
VL - 5200 LNCS
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 435
EP - 444
BT - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ER -