Congestion Free Path Research Articles

Routing Imperative Data Packets in Wireless Sensor Networks using Congestion Free Path

The congestion problem in Wireless Sensor Networks (WSNS) is quite different from that in traditional networks. Most current congestion control algorithms try to alleviate the congestion by reducing the rate at which the source nodes inject packets into the network. Congestion occurs when too many source nodes are sending data for network to handle. It causes missing of data packets, increases energy efficiency and transmission delay. Transferring crucial data in critical situation is a challenging problem in WSNS. In sensor network two types of paths are constructed for data transmission, they are single path and multi path. Single path data transmission leads to more congestion as all data are send through a single path. Multi path data transmission reduces congestion by sending data based on the urgency. The proposed work dynamically schedules different type of data flow. To assign priority for each data packets it avoids the starvation problem by finding buffer occupancy of each intermediate node by finding the shortest path. Imperative data packets routed using congestion free path with minimum delay in WSNS increase the network throughput and efficiency.

Dynamic MPLS With Feedback

Multiprotocol Label Switching (MPLS) fasten the speed of packet forwarding by forwarding the packets based on labels and reduces the use of routing table look up from all routers to label edge routers(LER) , where as the label switch routers (LSRs) uses Label Distribution Protocol (LDP) or RSVP (Resource reservation Protocol) for label allocation and Label table for packet forwarding . Dynamic protocol is implemented which carries a Updates packets for the details of Label Switch Paths, along with this feedback mechanism is also introduced which find the shortest path among MPLS network and also feedback is provided which also help to overcome congestion, this feedback mechanism is on a hop by hop basis rather than end to end thus providing a more reliable and much faster and congestion free path for the packets .