Resource Allocation and Information Exchange of Cognitive user Connectivity with Minimal Interference using Simulation Analysis

Abstract

The purpose of this research is to develop protocols for the underutilized channels of primary user usage with scant transmission and minimal interference associating with the secondary users. This has been achieved with large scale fading channels using discrete time queues. Flow level analysis has been made by appropriate queuing model and packet level analysis has done with NS2 simulator. CRTTP uses the channel selection procedure based on utilization, throughput and minimal drop rate whereas the response time denotes whether to increment or decrement transmission power control. Cognitive Radio based Temporal Transmission Protocol Single Channel (CRTTP-SC) denies transmission if sustainable routing parameter does not by cognitive user. Cognitive Radio based Temporal Transmission Protocol Single Channel Receiver Capacity (CRTTP-SCRC). CRTTP-SCRC protocol calculates the channel utilization, drop rate and receiver capacity after which it determines whether to prolong transmission or to refrain from transmission. Cognitive Radio based Temporal Transmission Protocol Multiple Channel (CRTTP MC) uses exponential distribution with inter-arrival time of packets with appropriate transmission power assigned to each channel. Cognitive Radio based Temporal Transmission Protocol Multiple Channel Collision Avoidance (CRTTP-MCCA) assigning hyper exponential distribution with inter arrival time of packets for optimizing the usage of lesser utilized channel. Comparison has been done with simulations for single channel protocols of CRTTP and multiple channel protocols of CRTTP.