Dynamic spectrum assignment in multicell OFDMA networks enabling a secondary spectrum usage


          

刊名：Wireless Communications & Mobile Computing
作者：Francisco Bernardo（Department of Signal Theory and Communications, Universitat Politecnica de Catalunya）
Ramon Agust（Department of Signal Theory and Communications, Universitat Politecnica de Catalunya）
Jordi Perez-Romero（Department of Signal Theory and Communications, Universitat Politecnica de Catalunya）
Oriol Sallent（Department of Signal Theory and Communications, Universitat Politecnica de Catalunya）
刊号：734C0021
出版年：2009
年卷期：2009, vol.9, no.11
页码：1502-1519
总页数：18
分类号：TN92
关键词：Dynamic spectrum assignment；Multicell OFDMA；Cognitive radio；Secondary spectrum usage
参考中译：
语种：eng
文摘：The aim of this paper is to propose a set of novel Dynamic Spectrum Assignment (DSA) algorithms for multicell Orthogonal Frequency Division Multiple Access (OFDMA) scenarios. Thanks to the proposed algorithms, licensed spectrum holders can release spectrum bands in large geographical areas to be leased to other secondary markets in a cognitive radio environment, while preserving the quality of service (QoS) of the licensed users in the system. Results are obtained comparing the proposed schemes against other conventional frequency reuse strategies, revealing significant improvements in terms of both spectral efficiency and opportunities for secondary usage.



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