Multi-Rate Transmission in 802.11-Based OSA Multi-Hop Ad Hoc Networks
Opportunistic Spectrum Access (OSA) is a suitable approach to increase spectrum efficiency for the current spectrum management. This paper considers the Secondary User (SU) multi-rate multi-hop impact under the temporal dynamic aspect of OSA. The authors investigate the SU multi-rate transmission and number of hops impact under the temporal dynamic aspect of OSA. The observed metrics include both SU and PU performance. Numerical analysis and simulation results show the existence of multi-rate and multi-hop diversity. To obtain the optimal performance, the balance between high enough transmission rate and few enough number of hops is essential.