Abstract
In IEEE 802.15.4 LR-WPANs, quality-of-service (QoS) is supported by using the guaranteed time slots (GTS) to transmit real-time packets, where a LR-WPAN device does not need to contend for channel. Requests of GTS are allocated based on the first-come-first-service policy in the PAN coordinator. However, with the increasing of multimedia applications, this original design has suffered from a lack of priority mechanism to support transmission of real-time packets. In this paper, we propose a non-preemptive priority-based polling scheme for the GTS allocation in IEEE 802.15.4 LR-WPANs. The proposed scheme can ensure the connections with higher priority can transmit real-time packets faster. The simulations show that the proposed scheme can achieve more GTS allocations, higher throughput, better bandwidth utilization and lower packets access delay time.
| Original language | English |
|---|---|
| Pages (from-to) | 307-316 |
| Number of pages | 10 |
| Journal | Journal of Internet Technology |
| Volume | 13 |
| Issue number | 2 |
| Publication status | Published - 2012 Jul 16 |
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All Science Journal Classification (ASJC) codes
- Software
- Computer Networks and Communications
Cite this
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Constant bit rate packets transmission in IEEE 802.15.4 LR-WPANs. / Wang, Teng Hui; Shih, Ming-Yi; Wang, Hsing-Wen.
In: Journal of Internet Technology, Vol. 13, No. 2, 16.07.2012, p. 307-316.Research output: Contribution to journal › Article
TY - JOUR
T1 - Constant bit rate packets transmission in IEEE 802.15.4 LR-WPANs
AU - Wang, Teng Hui
AU - Shih, Ming-Yi
AU - Wang, Hsing-Wen
PY - 2012/7/16
Y1 - 2012/7/16
N2 - In IEEE 802.15.4 LR-WPANs, quality-of-service (QoS) is supported by using the guaranteed time slots (GTS) to transmit real-time packets, where a LR-WPAN device does not need to contend for channel. Requests of GTS are allocated based on the first-come-first-service policy in the PAN coordinator. However, with the increasing of multimedia applications, this original design has suffered from a lack of priority mechanism to support transmission of real-time packets. In this paper, we propose a non-preemptive priority-based polling scheme for the GTS allocation in IEEE 802.15.4 LR-WPANs. The proposed scheme can ensure the connections with higher priority can transmit real-time packets faster. The simulations show that the proposed scheme can achieve more GTS allocations, higher throughput, better bandwidth utilization and lower packets access delay time.
AB - In IEEE 802.15.4 LR-WPANs, quality-of-service (QoS) is supported by using the guaranteed time slots (GTS) to transmit real-time packets, where a LR-WPAN device does not need to contend for channel. Requests of GTS are allocated based on the first-come-first-service policy in the PAN coordinator. However, with the increasing of multimedia applications, this original design has suffered from a lack of priority mechanism to support transmission of real-time packets. In this paper, we propose a non-preemptive priority-based polling scheme for the GTS allocation in IEEE 802.15.4 LR-WPANs. The proposed scheme can ensure the connections with higher priority can transmit real-time packets faster. The simulations show that the proposed scheme can achieve more GTS allocations, higher throughput, better bandwidth utilization and lower packets access delay time.
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M3 - Article
AN - SCOPUS:84863704034
VL - 13
SP - 307
EP - 316
JO - Journal of Internet Technology
JF - Journal of Internet Technology
SN - 1607-9264
IS - 2
ER -