XIV. Title. 2.1 Schematics of the WEP Encryption in WEP technique Decryption in WEP technique Process of TKIP 25

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1 XIV LIST OF FIGURES Figure Title Page 2.1 Schematics of the WEP Encryption in WEP technique Decryption in WEP technique Process of TKIP IEEE 802.1x Structure RSNA Architecture Key Management and distribution in i Details in 4 way handshake protocol in IEEE i Calculation of MIC based on CBC-MAC AES Calculation of MIC based on CBC-MAC OODA Loop The Cognitive(CN) Framework Structure of Biological Neuron Artificial Neuron Rosenblatt s Single-Layer Perception Three Layer Multilayer Perception with Input layer, One 74 Hidden Layer and Output layer. 3.5 Activation of Neuron 77

2 XV 3.6 Three layer multilayered feed forward Artificial Neural 81 Network (ANN). 4.1 Cognitive Wireless Network having 3 nodes Conceptual Architecture of the CFA State diagram of Cognitive analysis carried out by the CSM Back propagation based Neural Network Flow Chart of the Proposed System Processing Extracted PADL Graph of CSM Node Classification Analysis Graph of CSM Detection Time for Node Transaction 113 Analysis 5.1 Conceptual CFA Block Diagram of CFA Cross Layer CSM Adaptive Design A simple Neural Network Multilayered Feed Forward Neural Network Flowchart of Operation of CSM % Error Rate Based on Number of Neurons in Input Layer Response Time based on Number of Neurons in Input layer % Learning Error based on Number of Neurons in Input 126 layer

3 XVI 5.10 Response time in ms based on Number of Neurons in Input 126 Layer 5.11 Graph of % Learning Error based on Number of Iterations Response time in ms based on Number of Iterations Malicious Detection Rates with the Number of Training 131 Usage Patterns Per User Node False Negative Rate with the Number of Training Usage 132 patterns Per User Node 5.15 Malicious Detection Rates with the Number of Training 133 Cycle per user node False Negative Detection Rates with the Number of Training 134 Cycle per user node.

4 XVII LIST OF TABLES Table Title Page 3.1 A brief history of ANN Biological and Artificial Neural Network Terminology Common Activation Functions Node Specification Versus Average PADL Extraction Time Response Time of CSM detection of Transaction Versus Training Set No of Neuron in Input layer Versus % Error Learning Rate, % Error and Response Time analysis Number of Iterations, Learning Error in % and Execution Time Analysis for Learning Rate = Number of Iterations, Learning Error in % and Execution Time Analysis for Learning Rate = Number of training data per Node Used to Train the MFNN and the Malicious Node Detection Rate 5.6 Number of training data per Node used to train the MFNN False Negative Detection Rate Number of Training cycle used to train Network using SOM and the Malicious Node Detection Rate 5.8 Number of Training cycle Used to Train Network using SOM and the False Negative Detection Rate

5 XVIII LIST OF ABBREVIATIONS AC-AC ANN-Artificial Neural Network AES- Advanced Encryption Standard Counter mode Advanced Encryption Standard encryption CTR-AES AP- Access Point AS- Authentication Server BPNN- Back Propagation Neural Networks BMU-Best Matching Unit CCMP Counter-Mode CBC-Mac Protocol CN- Cognitive Network CM- Cognition Manager CP-Cognitive Process CR- Cognitive Radio DoS- Denial of Service DHCP- Dynamic Host Configuration Protocol EAP- Extensible Authentication Protocol ICV- Integrity Checksum Value IEEE- Institute of Electrical and Electronics Engineers KEK- Key Encryption Key CFA- Cognitive Framework Architecture CSM- Cognitive Security Manager

6 XIX CSL- Cognitive Specification Language IP- Internet Protocol IV- Initialization Vector IBM- International Business Machine KCK- Key Conformance Key KSA- Key Scheduling Algorithm MAC- Medium AC MIC -Message Integrity Code MLP-Multilayer Perceptron MFNN- Multilayer Feed Forward Neural Network PADL-Physical Architecture Description Layer PHY- Physical Layer PM- Policy Manager PTK- Pair wise Transient Key PMK-Pairwise Master Key GTK- Group Temporal Key QoS- Quality of Service RSN- Robust Security Network RSNA- RSN Association RSNE- RSNA information Element RRKL- Radio Knowledge Representation Language TCP -Transmission Control Protocol

7 XX SAN- Software Adaptable Network SDR-Software Defined Radio SSID- Service Set Identifier STA- Station SOM-Self Organizing Map TKIP -Temporal Key Integrity Protocol WEP- Wired Equivalence Privacy WLANs- Wireless Local Area Networks WPA 2- Wi-Fi Protected Access 2 WPA- Wi-Fi protected Access