A novel empirical SIR-to-CQI mapping rule for DC-HSDPA systems

Authors : Çetin KURNAZ, Begüm Korunur ENGİZ, Murat Oğuz ESENALP

Pages : 4768-4776

View : 26 | Download : 11

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :This study aims to determine the mapping rule for signal-to-interference ratio insert ignore into journalissuearticles values(SIR); to channel quality indicator insert ignore into journalissuearticles values(CQI); based on DC-HSDPA real field measurements. The measurements were performed using the TEMS Investigation Tool at 85 different propagation mediums. The measurement results showed that the SIR-to-CQI mapping methods in the literature were insufficient to characterize actual radio environments; thus, proposal of a new empirical SIR-to-CQI mapping rule was aimed. This rule provides substantially better performance than the existing methods, and with this rule CQI can be generated from SIR with an accuracy of around 90% for DC-HSDPA systems.
Keywords : DC HSDPA, channel quality indicator, SIR to CQI mapping, TEMS Investigation Tool