A Beacon and GTS Scheduling Scheme for IEEE 802.15.4 DSME Networks

Ieee 802.15.4 Wireless Sensor Networks: Gts Scheduling and Service Differentiation

A Novel IEEE 802.15.4e DSME MAC for Wireless Sensor Networks

IEEE 802.15.4e standard proposes Deterministic and Synchronous Multichannel Extension (DSME) mode for wireless sensor networks (WSNs) to support industrial, commercial and health care applications. In this paper, a new channel access scheme and beacon scheduling schemes are designed for the IEEE 802.15.4e enabled WSNs in star topology to reduce the network discovery time and energy consumption....

An efficient GTS allocation scheme for IEEE 802.15.4 MAC layer

Based on IEEE 802.15.4, the contention-free period (CFP) adopts a guarantee time slot (GTS) mechanism to ensure each device can access the radio channel. However, it is hard to get the authority to access the radio channel due to more competitor access the radio channel simultaneously. To cope with this issue, we proposed a guarantee time slot mechanism to enhance the performance and utilizatio...

An optimal GTS scheduling algorithm for time-sensitive transactions in IEEE 802.15.4 networks

IEEE 802.15.4 is a new enabling standard for low-rate wireless personal area networks and has been widely accepted as a de facto standard for wireless sensor networking. While primary motivations behind 802.15.4 are low power and low cost wireless communications, the standard also supports time and rate sensitive applications because of its ability to operate in TDMA access modes. The TDMA mode...

An efficient delay constrained scheduling scheme for IEEE 802.16 networks

In this paper, we propose a simple yet efficient delay-constrained scheduling scheme for IEEE 802.16 networks. The proposed scheduling scheme not only can satisfy delay constraints of different service types by manipulating a simple operation parameter but also can achieve a good fairness performance. An analytical model is developed to evaluate the performance in terms of interservice time, av...