International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 67 - Number 7 |
Year of Publication: 2013 |
Authors: M. Shamim Kaiser, Shamim Al Mamun, Kazi M. Ahmed |
10.5120/11404-6728 |
M. Shamim Kaiser, Shamim Al Mamun, Kazi M. Ahmed . Interference Temperature Constraint-based Radio Resource Allocation for the Network Coded Cognitive Cooperative Network (NCCCN). International Journal of Computer Applications. 67, 7 ( April 2013), 1-6. DOI=10.5120/11404-6728
Demand for higher data rate wireless applications has led to scarcity in radio frequency spectrum. Spectrum access achieves near-optimal spectrum utilization efficiency with the advent of cognitive radio technology. In cognitive radio network (CRN), each cognitive user, also called secondary user (SU), senses and uses radio spectrum opportunistically while regulating the interference constraint. This article focuses the radio resource allocation considering interference temperature constraints for the network coded cognitive cooperative network (NCCCN). Analog network coded (ANC) Orthogonal-Frequency-Division- Multiplexing (OFDM) improves the capacity of the cognitive cooperative network (CCN). Moreover, CCN enhances the spectrum utilization efficiency. Power allocation optimization problems have been formed that maximize the data transmission rate of NCCCN under the total transmit and peak-interference powers or the total transmit and average-interference powers. The spectral efficiency of the proposed network is compared with the spectral efficiency of CCN without ANC. Simulation results show that the proposed NCCCN enhances spectral efficiency in compared to the CCN without ANC.