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

Autor: Guillermo Galaviz, David H. Covarrubias Rosales, Jośe Fernando Ortega Mũnoz, Arturo Garćıa Melchor, H́ector Manuel F́elix Ibarra
Rok vydání: 2012
Předmět:
Zdroj: Procedia Engineering. 35:126-134
ISSN: 1877-7058
DOI: 10.1016/j.proeng.2012.04.173
Popis: 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.
Databáze: OpenAIRE