Some investigations on time slot scheduling for quality of service in wireless sensor networks

Abstract

Wireless Sensor Network WSN comprises sensor nodes that require resource optimized routing and scheduling techniques to attain efficient data collection and to achieve better data transmission Scheduling is used for reducing routing overhead and delay in the network based on the specific Quality of Service QoS metrics Multi path routing is developed to deliver the difficult data packets to sink node and to obtain reliable data delivery with higher QoS among source and sink node But node location for QoS data information is remained unaddressed Therefore three different proposed methods are developed for achieving an efficient route path to provide QoS data transmission Initially to address minimal powered test bed for wireless sensor network in terms of processing power and device cost is designed for that same an efficient route path among small network is achieved by proposing a QoS aware congestion control protocol At first request frame collects the information about the source node and transmit to the neighbouring node Next reply frame is generated to determine the neighbouring node information for providing QoS in transmission At last with the support of request and reply frame the link status and bandwidth is collected for route establishment This ensures the quality of routing among source and destination in WSN newline