SYSTEM FOR MULTI-PATH TCP INTEGRATION WITH NETWORK CODING IN WIRELESS NETWORKS

Abstract

Abstract This invention relates to a wireless sensor network (WSN) that integrates hardware and software to facilitate efficient and reliable data collection, even in weak and lossy connections. The WSN employs the RPL (Routing Protocol for Low-Power and Lossy Networks) to build and maintain its topology using objective functions such as hop count and Expected Transmission Count. In this method a software-defmed networking (SON) framework is introduced to manage WSN routers through ·a controller server node. This dynamic network accommodates both mobile and power-limited nodes. The routing process determines the optimal path between two points, and the proposed approach utilizes energy harvesting to enhance routing efficiency. It integrates link capacity and available path bandwidth into a single, manageable entity, allowing the SON controller node to reconfigure paths dynamically.· This results in reduced conjunction-related packet loss and improved packet delivery ratios

Specification

1. TITLE OF THE INVENTION
System for Multi-Path TCP Integration with Network Coding in Wireless Networks
2. APPLICANT:
SAVEETHA ENGINEERING COLLEGE
SAVEETHA NAGAR, THANDALAM,
CHENNAI-602105, TAMILNADU.
3. PREAMBLE TO THE DESCRIPTION
The proposed system works by using the SDN controller to classify network traffic based on
QoS (Quality of Service) requirements, allowing the systemto prioritize essential data.
DESCRIPTION
4.1 BACKGROUND OF INVENTION
Wireless Sensor Networks (WSNs) are composed of multiple sensor nodes that interact to
collect and communicate data from various environments. These networks are critical for
applications such as environmental monitoring, healthcare, and smart cities. The data routing
in these networks is often managed by the RPL (Routing Protocol for Low-Power and Lossy
Networks), which is designed to handle weak and lossy connections. However, RPL faces
challenges such as network instability due to greedy parent selection, congestion-related
packet loss, and inefficient energy utilization in dynamic and power-constrained
environments. To address these issues, Software-Defmed Networking (SON) has emerged as
a solution by introducing a centralized control mechanism that can reconfigure network
routes dynamically based on real-time conditions .
4.2 FIELD OF INVENTION
The present invention relates to the field of wireless communication, specifically Wireless
Sensor Networks (WSNs). More particularly, it pertains to the integration of SoftwareDefined
Networking (SDN) with an energy-efficient routing protocol to enhance data
transmission, reduce packet loss, and optimize energy usage in WSNs.
4.3 DISCUSSION OF THE RELATED ART
Existing WSNs typically rely on the RPL protocol to manage network topology and data
transmission. While effective in some scenarios, RPL suffers from several drawbacks in more
dynamic environments, including parent selection inefficiencies and congestion, leading to
packet loss and instability. Previous attempts to improve WSN performance have introduced
SDN as a flexible and dynamic control mechanism, but many of these approaches do not
fully address the energy inefficiency and real-time reconfiguration needs of WSNs.
Moreover, congestion control and QoS (Quality of Service) management rernain challenging
in traditional systems. Therefore, an enhanced SON-based energy-efficient routing solution is
necessary to overcome these limitations and ensure reliable data transmission in powerlimited
WSN environments.
4.4 SUMMARY OF INVENTION
Existing WSNs typically rely on the RPL protocol to manage network topology and data
transmission. While effective in some scenarios, RPL suffers from several drawbacks in more
dynamic environments, including parent selection inefficiencies and congestion, leading to
packet loss and instability. Previous attempts to improve WSN performance have introduced
SDN as a flexible and dynamic control mechanism, but many of these approaches do not
fully address the energy inefficiency and real-time reconfiguration needs of WSNs.
Moreover, congestion control and QoS (Quality of Service) management remain challenging
in traditional systems. Therefore, an enhanced SON-based energy-efficient routing solution is
necessary to overcome these limitations and ensure reliable data transmission in powerlimited
WSN environments.
4.4 DETAILED DISCRIPTION OF THE INVENTON
The invention proposes an SON-based routing protocol that dynamically optimizes network
paths in WSNs, taking into account energy consumption, link capacity, and available
bandwidth. The SDN controller centralizes network management by continuously monitoring
network conditions and reconfiguring paths to reduce packet loss due to congestion. The
system also categorizes traffic based on QoS requirements, ensuring that high-priority data is
transmitted reliably.
The proposed architecture involves the following steps:
I. Initialization: The system sends out "Hello" packet~ to map the network topology.
2. Route Request (RREQ) and Reply (RREP): Nodes broadcast RREQ messages to
establish the best path to the destination based on real-time conditions. Upon reaching
the destination, an RREP is sent back to con finn the route.
3. Path Optimization: The SDN controller is infonned of the optimal path, and traffic
is categorized based on its urgency. If the chosen path encounters congestion or delay,
the SDN controller dynamically reroutes packets to alternative paths.
4. Reinforcement Learning: The system uses reinforcement learning to monitor and
adjust energy consumption, ensuring that energy use is optimized while maintaining
network reliability. ·
This SON-based approach was validated through simulations using the NS2 platfonn. The
experimental results demonstrated significant improvements in energy consumption, packet
delivery ratio, and overall network stability compared to traditional RPL-based systems.
Title of the Invention
System for Multi-Path TCP Integration with Network Coding in Wireless Networks
Abstract
This invention relates to a wireless sensor network (WSN) that integrates hardware
and software to facilitate efficient and reliable data collection, even in weak and lossy
connections. The WSN employs the RPL (Routing Protocol for Low-Power and Lossy
Networks) to build and maintain its topology using objective functions such as hop count and
Expected Transmission Count. In this method a software-defmed networking (SON)
framework is introduced to manage WSN routers through ·a controller server node. This
dynamic network accommodates both mobile and power-limited nodes. The routing process
determines the optimal path between two points, and the proposed approach utilizes energy
harvesting to enhance routing efficiency. It integrates link capacity and available path
bandwidth into a single, manageable entity, allowing the SON controller node to reconfigure
paths dynamically.· This results in reduced conjunction-related packet loss and improved
packet delivery ratios.
4. CLAIMS:
claim I: A wireless sensor network (WSN) using a software-defined networking
(SON) controller to manage routing, with dynamic path reconfiguration based on a
link between Data Distribution Service (DDS) and the SON for. efficient .data
transmission in lossy networks.
Claim 2: The method of claim I, where the SON controller adjusts routing paths in
real time by monitoring link capacity and bandwidth, optimizing energy use and
reducing packet loss.
Claim 3: A routing protocol for low-power and lossy networks (RPL), using an
Energy Harvest mechanism, with the SON controller optimizing routes based on hop
count and Expected Transmission Count (ETX).
Claim 4: The system of claim I, where the SON controller improves parent election in
the DODAG structure, reducing greedy parent selection and enhancing network
stability in lossy environments.
Claim 5: The method of claim I, simulated using NS2, showing improved packet
delivery and reduced instability in dynamic, power-limited networks.

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