Dynamic Spectrum Management in Multi-Radio Access Technology (RAT) Cellular Systems

作者：Alsohaily Ahmed^*; Sousa Elvino S

来源：IEEE Wireless Communications Letters, 2014, 3(3): 249-252.

DOI：10.1109/WCL.2014.022314.130796

• Cellular systems
• multi-RAT systems
• spectrum management

Fixed Spectrum Allocation (FSA) results in suboptimal spectrum utilization, unbalanced system loading and the inability to adapt to system traffic variations when employed in multi-Radio Access Technology (RAT) systems. This paper proposes the use of flexible spectrum management techniques in multi-RAT systems. A Dynamic Spectrum Management (DSM) framework that addresses the shortcomings of FSA, while ensuring the reliable operation of all co-deployed RATs, is presented. Simulations for a system co-deploying HSPA and LTE show that the proposed framework outperforms FSA schemes and is capable of adapting to system traffic variations.

• 出版日期2014-6