Resource assignment without service priorities using channel quality information in LTE-advanced systems

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• 作者：Joś ; e Fernando Ortega Mũ ; noz^a ; ^{ortegam@cicese.edu.mx} ; H́ ; ector Manuel F́ ; elix Ibarra^a ; Arturo Garć ; ı ; a Melchor^a ; Guillermo Galaviz^a ; ^b ; David H. Covarrubias Rosales^a
• 关键词：Scheduler ; CQI ; Resource Block ; LTE-Advanced
• 刊名：Procedia Engineering
• 出版年：2012
• 出版时间：2012
• 年：2012
• 卷：35
• 期：Complete
• 页码：126-134
• 全文大小：1106 K

文摘

This work addresses the spectral e_ciency problem in LTE-Advanced systems that require multiple spectrum resources using a Round Robin scheduler that takes the channel quality information as an input. In order to asses the performance of this scheduling method, a simulation scenario consisting of a wireless cellular communication system operating in the 2.3 GHz and 3.4 GHz frequency bands is used. This scenario considers that a minimum channel quality, as reported by the Channel Quality Indicator (CQI), is available at the cell edge in order to guarantee a minimum Quality of Service (QoS). By means of numeric simulation the user blocking probability and the e_ective throughput are evaluated considering the cases of contiguous and non-contiguous resource allocation.