The present invention relates to a system for data collection in wireless sensor networks. The object is to provide an improved Quality of Services using bandwidth control sectoring technique in wireless sensor networks, to reduce higher energy utilization by sensor nodes. The nodes are randomly deployed in the network. There are sectors formed according to the equal number of sector heads. There is one sink node which collects data from sector heads. Common nodes are deployed randomly to transmit data packets to the respective level 1 node within a sector. Thus, bandwidth will be controlled, and congestion in the network is reduced. Dynamic bandwidth control technique achieves the various quality of services parameters of wireless sensor networks. QoS like latency (delay), energy efficiency, delivery ratio, loss ration including throughput. This paper shows the best protocol for data dissemination in wireless sensor networks. This is designed for achieving maximum QoS of wireless sensor networks.

Bandwidth control sectoring technique (DBA)Congestion control,Sector head, Quality of Services (QoS), Wireless sensor networks (WSNs),.