Co-channel interference constrained spectrum allocation with simultaneous power and network capacity optimization using PSO in Cognitive Radio Network
- Resource Type
- Conference
- Authors
- Tiwari, Pratik; Saha, Seemanti
- Source
- 2015 IEEE International Conference on Advanced Networks and Telecommuncations Systems (ANTS) Advanced Networks and Telecommuncations Systems (ANTS), 2015 IEEE International Conference on. :1-3 Dec, 2015
- Subject
- Communication, Networking and Broadcast Technologies
Computing and Processing
Optimization
Interference
Resource management
Cognitive radio
Signal to noise ratio
Linear programming
Mathematical model
Cognitive Radio Network
Particle Swarm Optimization
Power allocation
Network capacity
Spectrum Allocation
- Language
- ISSN
- 2153-1684
This paper presents a Particle Swarm Optimization (PSO) based co-channel interference constrained efficient and low-complexity novel spectrum allocation scheme with simultaneous power and network capacity optimization for a Cognitive Radio Network (CRN) with a system model of multiple secondary user (SU) pairs and one primary user (PU) pair in a spectrum underlay fashion. A novel weighted fitness function is proposed subject to the constraint that all primary users and secondary users are supported with their target signal-to-interference-noise ratio (SINR). MATLAB simulation shows that total transmitted-power-per- node (TPPN) decreases while the network capacity remains almost constant for proper choice of weight ratio of the fitness function involved and hence, in the real-time situation, we can avoid the high computational burden of multi-objective optimization by predetermining the weight ratio through parametric study.