Decentralized inter-radio access network dynamic spectrum selection scheme
A. Yarmohammad, Rahim Tafazolli · 2009
Many radio access networks (RAN) operate in various bands, providing both common and distinct services. Currently the fixed allocation of spectrum (FSA) to various RANs creates inflexibility that leads to inefficient use of the spectrum. In this work a robust, technology neutral, decentralized, Inter-RAN dynamic spectrum selection (DSS) scheme is proposed. This work has sought to establish the basis for a generic method of DSS, wherein user equipment (UE) can obtain the most appropriate RAN for operation. Low complexity and low signaling overhead have been two important factors in designing this scheme. The impact of the proposed scheme on spectral efficiency and signaling load has been investigated. The results show an improvement in spectral efficiency with considerably low signaling overhead. Fairness in sharing, which is one of the important issues in spectrum sharing, can be easily achieved with this scheme.