Inter-Vendor Dynamic Spectrum Sharing: Feasibility Study and Performance Evaluation

This paper introduces a dynamic spectrum sharing scheme applied across vendors (service providers such as wireless companies). A spectrum allocation server (SAS) equipped with cognitive radio senses the surrounding environment and acquires spectrum utilization information in its coverage area. Upon request, the SAS allocates the available spectrum to the overloaded vendors. The paper mainly studies the feasibility of the proposed technique in terms of the probability-of-sharing across vendors, and analyzes the impact of correlation of traffic rates on the performance of inter-vendor spectrum sharing.