Sambhaji Sarode, Jagdish Bakal
Department of Computer Science & Engineering,
GHRCOE, RTM University, Nagpur, Maharashtra, India
This paper presents a priority approach for censorious real-time traffic which flows particularly for low
data rate wireless sensor and actor network (LR-WSAN). In the recent years, the demand for low rate
wireless data transmission has been increased drastically in small scale industrial and non-industrial
applications. The different traffic flows are increased by incorporating a variety of distinct sensing devices.
In particular, injection of different traffic into network makes the communication system unstable and
unreliable because of unnecessarily resource utilization, wasting energy for surplus delivery management
and violation of time constraints. This paper aims to presents the new priority-based algorithm at actuator
node for appropriate classification and categorization of data packets for delay sensitive and delaytolerant
applications. A novel real-time priority-based scheduler (RTPS) is proposed to handle
heterogeneous data flows simultaneously according to their transmission type. The priority-based data
delivery is an essential research topic for low rate multi-event IEEE 802.15.4 sensor networks. A priority
metric is designed to dynamically control various types of traffic based flows with considerations of packet
type, delay, and buffer processing rate. TestBed results describe significant improvements in data reporting
mechanism for delay sensitive and delay-tolerant applications over various topologies. The high priority
transient traffic suffers less delay and presents effective packet delivery ratio compared with traditional
approaches.
KEYWORDS
Transport protocol, Packet Scheduling, Reliability, Wireless sensor networks, WSN TestBed, Priority-based
data reporting, IEEE 802.15.4 sensor networks, queue management, congestion control.
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